3 STEM Water Rocket How to With Fin Templates

Water Rocket

THE Challenge: Teams (of 2) will design, build and test a water rocket designed to stay aloft for the greatest amount of time.

The competition requirements:Th

1. The rocket’s “Pressure Vessel”: a. The “pressure vessel” is the part of the rocket that connects to the launcher

and is filled with water and pressurized air. b. The pressure vessel must be made out of a single 2-‐liter plastic carbonated

bottle (a soda bottle). c. Label may be removed, but must save it for the competition at the safety

inspection. d. Only TAPE may be used on the pressure vessel; glue may be used in other

parts of the rocket assembly, just not on the pressure vessel. e. No alterations may be made to the pressure vessel.

2. The Rocket’s Nose:

a. The nose must be blunt (flat) or rounded; nothing sharp or pointed! b. The width of the nose must be at least 2.5cm (radius of 1.25 cm)

3. The Rocket’s Fins:

a. The fins must be at least 5 cm from the mouth of the pressure vessel: this is the “No Fin Zone”. b. The fins may be any shape. c. Only tape may be used to attach fins to the pressure vessel.

4. Recovery System:

a. Any recovery system is allowed.

5. Safety Requirement: a. Participants must wear eye protection when launching the rocket!

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Research questions: go to tinyurl.com/wdstem

1. What kind of engineer designs and builds flying crafts such as planes, rockets,

and satellites? _____________________________________

2. What is Newton’s Third Law of Motion?

TEAM MEMBERS:

____________________________________

____________________________________

WD STEM Website

Nose: At least 2.5 cm

2013%NCSO%It’s%Elementary%Manual%©2013%NCSO%%%Revised%10/5/13%%%

9

Figure 2

3,#2,#1,#Blast#Off!##

1. DESCRIPTION:!Prior%to%the%tournament,%teams!construct!two!rockets%designed%to%stay%aloft%for%the%greatest%amount%of%time.%

2. NCSCoS!ALIGNMENT:!Grades%3U6%Science:%Science%and%Technology,%Science%as%Inquiry!%

3. TEAM!OF!UP!TO:!%2%%

4. MAXIMUM!!TIME:!!10%min.%!

5. TEAMS:!!Must!bring!labeled!rockets,!carbonated!beverage!bottle!labels!(if!removed),!and!safety!glasses.%%

6. EVENT!LEADERS:!!Will%provide%water%rocket%launcher,%water,%score%sheets,%and%timers.%%

7. SAFETY!REQUIREMENTS:!Teams%must%wear%eye%protection%during%the%loading,%launching,%and%retrieving%of%their%rockets.%%%

8. IMPOUND:!!No%!

9. THE!COMPETITION:! %a. Rocket%pressure%vessels%are%the%part%of%the%rocket%that%attaches%to%the%launcher%and%are%filled%with%water%and%air.%The% rocket%pressure%vessel%must%be%made%out%of%a% single%2Uliter%plastic% carbonated%beverage%bottle%with%a%neck/nozzle%opening%internal%diameter%of%approximately%2.2%cm%(a%1/2%inch%Schedule%40%PVC%pipe%must%fit%tightly%inside%the%nozzle%opening).%Labels%may%be%removed%from%the%bottle%but%labels%must%be%presented%at%the%safety%inspection.%

b. Only!tape!must!be!used!to!attach!fins!and!other!components!to!the!pressure!vessel.!No!glues!of!any!type!may!be!used!on!the!pressure!vessel.!Glue!may!be!used!in!other!parts!of!the!rocket!assembly.!Metal!of!any!type!and!commercial!model!rocket!parts!are!prohibited!anywhere!on!the!rocket.!!

c. The% structural% integrity% of% the% pressure% vessel%must% not% be% altered.% This%includes,%but%is%not%limited%to:%physical,%thermal,%or%chemical%damage%(e.g.,%cutting,% sanding,% using% hot% or% super% glues).% Alteration% to% the% structural%integrity% of% the% pressure% vessel% is% a% safety% violation% of% the% rocket% and% it%must% not% be% launched.% Event% supervisors% must% assess% the% structural%integrity% by% looking% through% the% nozzle% and% sides% of% the% bottle% for%discoloration,%bubbles,%thinning%or%cuts%in%the%walls.%%

d. Rockets%must%use%a%blunt%or%round%nose%with%a%minimum%radius%of%1.25%cm,%for%safety%(see%Figure%1).%Teams%must%not%use% a%nose% that% is% sharp,% pointed,% or% consisting%of% a% rigid% spike% regardless%of% the%material%used.%

e. Explosives,% gases% other% than% air,% chemical% reaction,% pyrotechnics,% electric% or% electronic% devices,%elastic%powered%flight%assists,% throwing%devices,%remote%controls%and%tethers%are%prohibited%at%any%time.%All%energy%imparted%to%the%rocket%at%launch%must%originate%from%the%water/air%pressure%combination.%

f. All% rockets% must% be% launched% using% the% launcher% provided% by% the%supervisor.%Fins%and%other%parts%added%to%the%pressure%vessel%must%be%5% cm% or% higher% above% the% level% of% the% bottle’s% opening% to% ensure%rockets%fit%on%the%launcher%(see%Figure%2).%%

g. Any% freeUfall% recovery%system% is%allowed%provided% it%does%not%violate%any%other%rule;%however,%the%recovery%system%must%be%judged%as%safe.%

h. Teams% must% arrive% at% the% competition% site% ready% to% launch.% Teams%must%bring%and%wear%safety%glasses%for%loading,%launching,%and%retrieving%their%rockets.%Teams!must!also! present! labels! from! the! pressure! vessel! if! labels! were! removed.% Following% the% safety%


9

Figure 2

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8. IMPOUND:!!No%!









2.1 Conduction of Energy Name: _______________________#___ Date: ___________________________ MATERIALS: Styrofoam cup, thermometer, room temperature water, hot water,

1 set of metal washers on string, safety goggles. LAB A.!!In#Hot#Water!

1. Measure and record the temperature of the washers. (Touching gently on the bottom of the thermometer. When it stops moving, that is the temperature.)

2. Fill the Styrofoam cup with about _____ ml of hot water (get from your teacher). 3. Measure and record the temperature of the hot water. 4. Leave the thermometer in the hot water. Hold the string and slowly lower the metal

washers all the way into the water. 5. Observe any change in the temperature of the water. Leave the metal washers in the

water. Draw and label your experiment at this point. 6. Record the temperature of the water with the metal washers in it. 7. Remove the washers, quickly record the temperature of the washers now. 8. Empty the cup in the sink. 9. Give the metal washers on a string to your teacher.

Lab A. Temperature Before

Together (Hot water + metal washers)

Temperature After

Water in the cup

water Draw and label water

Metal Washers

Washers washers

9. Explain what happened when room temperature washers were placed in hot water.

____________________________________________________________________________

____________________________________________________________________________

____________________________________________________________________________

____________________________________________________________________________

Question:!Why!does!the!temperature!of!matter!change?!!!!!!!

74 Middle School Chemistry Unit ©2011 American Chemical Society

Activity Sheet Name _______________________Chapter 2, Lesson 1Heat, Temperature, and Conduction Date ________________________

In this activity, you will place a room-temperature set of washers in hot water and then place a set of hot washers in room-temperature water. Find out what happens to the temperature of each.

ACTIVITY

Question to investigateWhy does the temperature of an object change when it is placed in hot water?

Materials for each group2 sets of large metal washers on a stringStyrofoam cup !lled with hot waterRoom-temperature water2 thermometersGraduated cylinder or beaker

Procedure

Room-temperature washers placed in hot waterPlace a thermometer in your cup to measure the initial 1. temperature of the water. Record the temperature of the water in the “Before” column in the chart on the activity sheet. Be sure to also record the initial temper-ature of the water in the control cup. Use another thermometer to measure the temperature 2. of the washers. Record this in the “Before” column. With the thermometer still in the water, hold the 3. string and lower the metal washers all the way into the water. Observe any change in the temperature of the 4. water. Leave the washers in the water until the temperature stops changing. Record the tem-perature of the water in each cup in the “A"er” column. Remove the washers from the water. #en take 5. and record the temperature of the washers in the “A"er” column.Empty the cup in a waste container or sink. 6.

74 Middle School Chemistry Unit ©2011 American Chemical Society

Activity Sheet Name _______________________Chapter 2, Lesson 1Heat, Temperature, and Conduction Date ________________________

In this activity, you will place a room-temperature set of washers in hot water and then place a set of hot washers in room-temperature water. Find out what happens to the temperature of each.

ACTIVITY

Question to investigateWhy does the temperature of an object change when it is placed in hot water?

Materials for each group2 sets of large metal washers on a stringStyrofoam cup !lled with hot waterRoom-temperature water2 thermometersGraduated cylinder or beaker

Procedure

Room-temperature washers placed in hot waterPlace a thermometer in your cup to measure the initial 1. temperature of the water. Record the temperature of the water in the “Before” column in the chart on the activity sheet. Be sure to also record the initial temper-ature of the water in the control cup. Use another thermometer to measure the temperature 2. of the washers. Record this in the “Before” column. With the thermometer still in the water, hold the 3. string and lower the metal washers all the way into the water. Observe any change in the temperature of the 4. water. Leave the washers in the water until the temperature stops changing. Record the tem-perature of the water in each cup in the “A"er” column. Remove the washers from the water. #en take 5. and record the temperature of the washers in the “A"er” column.Empty the cup in a waste container or sink. 6.

2013%NCSO%It’s%Elementary%M

anual%©2013%NCSO%%%Revised%10/5/13%%%

9

Figure 2

3,#2,#1,#Blast#Off!##

1. DESCRIPTION:!Prior%to%the%tournam

ent,%teams!construct!tw

o!rockets%designed%to%stay%aloft%for%the%greatest%am

ount%of%time.%

2. NCSCoS!ALIGNM

ENT:!Grades%3U6%Science:%Science%and%Technology,%Science%as%Inquiry!%

3. TEAM

!OF!UP!TO:!%2%%

4. MAXIM

UM!!TIM

E:!!10%min.%

!5.

TEAMS:!!M

ust!bring!labeled!rockets,!carbonated!beverage!bottle!labels!(if!removed),!and!safety!

glasses.%%

6. EVENT!LEADERS:!!W

ill%provide%water%rocket%launcher,%w

ater,%score%sheets,%and%timers.%

%7.

SAFETY!REQUIREMENTS:!Team

s%must%w

ear%eye%protection%during%the%loading,%launching,%and%retrieving%of%their%rockets.%%%

8. IMPOUND:!!No%

!9.

THE!COM

PETITION:!%a. Rocket%pressure%vessels%are%the%part%of%the%rocket%that%attaches%to%the%launcher%and%are%filled%w

ith%water%and%air.%The%rocket%pressure%vessel%m

ust%be%made%out%of%a%single%2Uliter%plastic%carbonated%

beverage%bottle%with%a%neck/nozzle%opening%internal%diam

eter%of%approximately%2.2%cm

%(a%1/2%inch%Schedule%40%PVC%pipe%m

ust%fit%tightly%inside%the%nozzle%opening).%Labels%may%be%rem

oved%from%the%

bottle%but%labels%must%be%presented%at%the%safety%inspection.%

b. Only!tape!must!be!used!to!attach!fins!and!other!com

ponents!to!the!pressure!vessel.!No!glues!of!any!type!m

ay!be!used!on!the!pressure!vessel.!Glue!may!be!used!in!other!parts!of!the!rocket!

assembly.!M

etal!of!any!type!and!commercial!m

odel!rocket!parts!are!prohibited!anyw

here!on!the!rocket.!!c. The%structural%integrity%of%the%pressure%vessel%m

ust%not%be%altered.%This%includes,%but%is%not%lim

ited%to:%physical,%thermal,%or%chem

ical%damage%(e.g.,%

cutting,%sanding,%using%hot%or%super%glues).%Alteration%to%the%structural%integrity%of%the%pressure%vessel%is%a%safety%violation%of%the%rocket%and%it%must%not%be%launched.%Event%supervisors%m

ust%assess%the%structural%integrity%by%looking%through%the%nozzle%and%sides%of%the%bottle%for%discoloration,%bubbles,%thinning%or%cuts%in%the%w

alls.%%d. Rockets%m

ust%use%a%blunt%or%round%nose%with%a%m

inimum

%radius%of%1.25%cm,%for%safety%(see%Figure%1).%

Teams%m

ust%not%use%a%nose%that%is%sharp,%pointed,%or%consisting%of%a%rigid%spike%regardless%of%the%material%used.%

e. Explosives,%gases%other%than%air,%chemical%reaction,%pyrotechnics,%electric%or%electronic%devices,%

elastic%powered%flight%assists,%throw

ing%devices,%remote%controls%and%tethers%are%prohibited%at%any%

time.%All%energy%im

parted%to%the%rocket%at%launch%must%originate%from

%the%w

ater/air%pressure%combination.%

f. All%rockets%must%be%launched%using%the%launcher%provided%by%the%

supervisor.%Fins%and%other%parts%added%to%the%pressure%vessel%must%be%

5%cm%or%higher%above%the%level%of%the%bottle’s%opening%to%ensure%

rockets%fit%on%the%launcher%(see%Figure%2).%%g. Any%freeUfall%recovery%system

%is%allowed%provided%it%does%not%violate%

any%other%rule;%however,%the%recovery%system

%must%be%judged%as%safe.%

h. Teams%m

ust%arrive%at%the%competition%site%ready%to%launch.%Team

s%must%bring%and%w

ear%safety%glasses%for%loading,%launching,%and%retrieving%their%rockets.%Teams!m

ust!also!present!labels!from

!the!pressure!vessel!if!labels!were!rem

oved.%Following%the%safety%

2013%NCSO%It’s%Elementary%M

anual%©2013%NCSO%%%Revised%10/5/13%%%

9

Figure 2

3,#2,#1,#Blast#Off!##

1. DESCRIPTION:!Prior%to%the%tournam

ent,%teams!construct!tw

o!rockets%designed%to%stay%aloft%for%the%greatest%am

ount%of%time.%

2. NCSCoS!ALIGNM

ENT:!Grades%3U6%Science:%Science%and%Technology,%Science%as%Inquiry!%

3. TEAM

!OF!UP!TO:!%2%%

4. MAXIM

UM!!TIM

E:!!10%min.%

!5.

TEAMS:!!M

ust!bring!labeled!rockets,!carbonated!beverage!bottle!labels!(if!removed),!and!safety!

glasses.%%

6. EVENT!LEADERS:!!W

ill%provide%water%rocket%launcher,%w

ater,%score%sheets,%and%timers.%

%7.

SAFETY!REQUIREMENTS:!Team

s%must%w

ear%eye%protection%during%the%loading,%launching,%and%retrieving%of%their%rockets.%%%

8. IMPOUND:!!No%

!9.

THE!COM

PETITION:!%a. Rocket%pressure%vessels%are%the%part%of%the%rocket%that%attaches%to%the%launcher%and%are%filled%w

ith%water%and%air.%The%rocket%pressure%vessel%m



eter%of%approximately%2.2%cm

%(a%1/2%inch%Schedule%40%PVC%pipe%m


oved%from%the%


b. Only!tape!must!be!used!to!attach!fins!and!other!com

ponents!to!the!pressure!vessel.!No!glues!of!any!type!m

ay!be!used!on!the!pressure!vessel.!Glue!may!be!used!in!other!parts!of!the!rocket!

assembly.!M

etal!of!any!type!and!commercial!m

odel!rocket!parts!are!prohibited!anyw

here!on!the!rocket.!!c. The%structural%integrity%of%the%pressure%vessel%m

ust%not%be%altered.%This%includes,%but%is%not%lim

ited%to:%physical,%thermal,%or%chem

ical%damage%(e.g.,%

cutting,%sanding,%using%hot%or%super%glues).%Alteration%to%the%structural%integrity%of%the%pressure%vessel%is%a%safety%violation%of%the%rocket%and%it%must%not%be%launched.%Event%supervisors%m

ust%assess%the%structural%integrity%by%looking%through%the%nozzle%and%sides%of%the%bottle%for%discoloration,%bubbles,%thinning%or%cuts%in%the%w

alls.%%d. Rockets%m

ust%use%a%blunt%or%round%nose%with%a%m

inimum


Teams%m



elastic%powered%flight%assists,%throw


time.%All%energy%im


%the%w



supervisor.%Fins%and%other%parts%added%to%the%pressure%vessel%must%be%


rockets%fit%on%the%launcher%(see%Figure%2).%%g. Any%freeUfall%recovery%system

%is%allowed%provided%it%does%not%violate%

any%other%rule;%however,%the%recovery%system


h. Teams%m


s%must%bring%and%w

ear%safety%glasses%for%loading,%launching,%and%retrieving%their%rockets.%Teams!m

ust!also!present!labels!from

!the!pressure!vessel!if!labels!were!rem


2013%NCSO%It’s%Elementary%Manual%©2013%NCSO%%%Revised%10/5/13%%%9

Figure 2

3,#2,#1,#Blast#Off!##








8. IMPOUND:!!No%!

9. THE!COMPETITION:!%a. Rocket%pressure%vessels%are%the%part%of%the%rocket%that%attaches%to%the%launcher%and%are%filled%with%water%and%air.%The%rocket%pressure%vessel%must%be%made%out%of%a%single%2Uliter%plastic%carbonated%beverage%bottle%with%a%neck/nozzle%opening%internal%diameter%of%approximately%2.2%cm%(a%1/2%inch%Schedule%40%PVC%pipe%must%fit%tightly%inside%the%nozzle%opening).%Labels%may%be%removed%from%the%bottle%but%labels%must%be%presented%at%the%safety%inspection.%


c. The%structural%integrity%of%the%pressure%vessel%must%not%be%altered.%This%includes,%but%is%not%limited%to:%physical,%thermal,%or%chemical%damage%(e.g.,%cutting,%sanding,%using%hot%or%super%glues).%Alteration%to%the%structural%integrity%of%the%pressure%vessel%is%a%safety%violation%of%the%rocket%and%it%must%not%be%launched.%Event%supervisors%must%assess%the%structural%integrity%by%looking%through%the%nozzle%and%sides%of%the%bottle%for%discoloration,%bubbles,%thinning%or%cuts%in%the%walls.%%

d. Rockets%must%use%a%blunt%or%round%nose%with%a%minimum%radius%of%1.25%cm,%for%safety%(see%Figure%1).%Teams%must%not%use%a%nose%that%is%sharp,%pointed,%or%consisting%of%a%rigid%spike%regardless%of%the%material%used.%

e. Explosives,%gases%other%than%air,%chemical%reaction,%pyrotechnics,%electric%or%electronic%devices,%elastic%powered%flight%assists,%throwing%devices,%remote%controls%and%tethers%are%prohibited%at%any%time.%All%energy%imparted%to%the%rocket%at%launch%must%originate%from%the%water/air%pressure%combination.%

f. All%rockets%must%be%launched%using%the%launcher%provided%by%the%supervisor.%Fins%and%other%parts%added%to%the%pressure%vessel%must%be%5%cm%or%higher%above%the%level%of%the%bottle’s%opening%to%ensure%rockets%fit%on%the%launcher%(see%Figure%2).%%

g. Any%freeUfall%recovery%system%is%allowed%provided%it%does%not%violate%any%other%rule;%however,%the%recovery%system%must%be%judged%as%safe.%

h. Teams%must%arrive%at%the%competition%site%ready%to%launch.%Teams%must%bring%and%wear%safety%glasses%for%loading,%launching,%and%retrieving%their%rockets.%Teams!must!also!present!labels!from!the!pressure!vessel!if!labels!were!removed.%Following%the%safety%

FORCE MOTION

Hot to construct a water rocket I. Mark Fin Location.

a. Select how many fins: 3 FINS or 4 FINS b. Cut out the Fin Location Strips for your # of fins. c. Wrap around Pressure Vessel and mark both sides. d. Draw a long line through the marks along the bottle.

II. Make Fins. III. Nose Cone (Padded)

a. Cut the base off of a second 2 Liter bottle. b. Leave the cap on it. c. Hot glue a Foam Donut around the cap to the bottle. d. Slide the Nose Cone bottle onto the Pressure Vessel.

IV. CG: Center of Gravity (Balance Test)

a. **The “Center of Gravity” must be above the fins on the pressure vessel, but not past the top of the pressure vessel.

b. Add mass to nose cone or on top of the pressure vessel until the CG (center of gravity) is “just right”.

c. To find the Center of Gravity, balance the rocket on a string.

d. Mark the Center of Gravity with

V. Go Fly! Fill Pressure Vessel ¼ to 1/3 full with water.

2013%NCSO%It’s%Elementary%Manual%

©2013%NCSO%%%Revised%10/5/13%%% 9

Figu

re 2

3,#2,#1,#Blast#Off!#

#1.

DESCRIPTION:!Prior%to%the%tournament,%team

s!construct!two!rockets%designed%to%stay%aloft%for%the%

greatest%amount%of%time.%

2. NCSCoS!ALIGN

MENT:!Grades%3U6%Science:%Science%and%Technology,%Science%as%Inquiry!

%3.

TEAM!OF!UP!TO

:!%2%

%4.

MAXIMUM!!TIME:!!10%min.%

!5.

TEAMS:!!Must!bring!labeled!rockets,!carbonated!beverage!bottle!labels!(if!rem

oved),!and!safety!

glasses.%

%6.

EVENT!LEADERS:!!W

ill%provide%water%rocket%launcher,%water,%score%sheets,%and%timers.%

%7.

SAFETY!REQUIREM

ENTS:!Teams%m

ust%w

ear%eye%protection%during%the%loading,%launching,%and%

retrieving%of%their%rockets.%%

%8.

IMPO

UND:!!No%

!9.

TH

E!COMPETITION:!%

a. Rocket%pressure%vessels%are%the%part%of%the%rocket%that%attaches%to%the%launcher%and%are%filled%with%

water%and%air.%The%rocket%pressure%vessel%m


beverage%bottle%with%a%neck/nozzle%opening%internal%diameter%of%approximately%2.2%cm%(a%1/2%inch%

Schedule%40%PVC%pipe%must%fit%tightly%inside%the%nozzle%opening).%Labels%may%be%removed%from

%the%


b. Only!tape!must!be!used!to!attach!fins!and!other!components!to!the!pressure!vessel.!No!glues!

of!any!type!may!be!used!on!the!pressure!vessel.!Glue!may!be!used!in!other!parts!of!the!rocket!

assembly.!Metal!of!any!type!and!commercial!model!rocket!parts!are!

prohibited!anywhere!on!the!rocket.!!

c. The%structural%integrity%of%the%pressure%vessel%must%not%be%altered.%This%

includes,%but%is%not%limited%to:%physical,%thermal,%or%chem

ical%dam

age%(e.g.,%

cutting,%sanding,%using%hot%or%super%glues).%Alteration%to%the%structural%

integrity%of%the%pressure%vessel%is%a%safety%violation%of%the%rocket%and%it%

must%not%be%launched.%Event%supervisors%m

ust%assess%the%structural%

integrity%by%looking%through%the%nozzle%and%sides%of%the%bottle%for%

discoloration,%bubbles,%thinning%or%cuts%in%the%walls.%%

d. Rockets%must%use%a%blunt%or%round%nose%with%a%minimum


Team

s%must%not%use%a%nose%that%is%sharp,%pointed,%or%consisting%of%a%rigid%spike%regardless%of%the%

material%used.%


elastic%pow

ered%flight%assists,%throw


time.%All%energy%im


%the%water/air%pressure%combination.%


supervisor.%Fins%and%other%parts%added%to%the%pressure%vessel%m

ust%be%


rockets%fit%on%the%launcher%(see%Figure%2).%%

g. Any%freeUfall%recovery%system%is%allowed%provided%it%does%not%violate%

any%other%rule;%how

ever,%the%recovery%system


h. Teams%must%arrive%at%the%competition%site%ready%to%launch.%Teams%

must%bring%and%wear%safety%glasses%for%loading,%launching,%and%retrieving%their%rockets.%Teams!must!

also!present!labels!from

!the!pressure!vessel!if!labels!were!removed.%Following%the%safety%

2013%NC

SO%It’s%Elem

entary%M

anual%

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Figure

2

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1. DESCRIPTION:!Prior%to%the

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SAFETY!RE

QUIREM

ENTS:!Team

s%must

%wear%eye

%prote

ction%du

ring%the%loading

,%launching,%an

d%retrievin

g%of%th

eir%rocke

ts.%%

%8.

IMPO

UND:!!No

%!

9. TH

E!COM

PETIT

ION:!%

a. Rocke

t%pres

sure%vess

els%are%the%pa

rt%of%the

%rocke

t%that%attach

es%to%the

%launche

r%and%are%fille

d%with%

water%an

d%air.%The%rock

et%pre

ssure%ves

sel%must

%be%made%o

ut%of%a%sing

le%2Uliter%p

lastic%carbo

nated

%bever

age%bo

ttle%with%a%neck/

nozzle%o

penin

g%inte

rnal%diam

eter%of%approx

imate

ly%2.2

%cm%(a%1/

2%inch

%Sch

edule

%40%PV

C%pipe

%must

%fit%tig

htly%inside%the%n

ozzle%opening

).%Labels%may%be%remo

ved%fro

m%the

%bottle

%but%la

bels%m

ust%be%prese

nted%at%th

e%safety%inspection.%

b. On

ly!tap

e!must!be!u

sed!to!attac

h!fins

!and!o

ther!com

ponents

!to!the!p

ressure!vesse

l.!No!g

lues!

of!any!type!m

ay!be

!used!on

!the!p

ressure!vesse

l.!Glue

!may!be

!used!in!other!parts!of!the

!rocket!

assem

bly.!M

etal!of!any!type!an

d!com

mercial!mo

del!rocket!parts!are!

prohibited

!anyw

here!on!the!rocket.!!

c. The%stru

ctural%integ

rity%o

f%the%p

ressur

e%vess

el%mu

st%not%be%a

ltered

.%This%

includ

es,%bu

t%is%no

t%limited

%to:%physical,%the

rmal,%or%che

mical%da

mage%(e.g.,%

cutting,%san

ding,%using%ho

t%or%super%

glues)

.%Alteration

%to%th

e%stru

ctural%

integr

ity%of%the%p

ressur

e%vess

el%is%a%safety%vio

lation

%of%the%rock

et%and%it%

must%

not%b

e%lau

nched.%E

vent%s

uperv

isors%

must%

assess

%the%struct

ural%

integr

ity%by%loo

king%thr

ough%th

e%nozzle%and%sides%

of%the

%bottle%

for%

discolora

tion,%b

ubble

s,%thin

ning%or%cuts

%in%the%w

alls.%%

d. Rocke

ts%must

%use%a%blunt%or%round%no

se%with%a%m

inimu

m%rad

ius%of%1.2

5%cm,%for%safety%(se

e%Figu

re%1).%

Team

s%must

%not%use%a%n

ose%that%is%sha

rp,%po

inted,%or%consisting%o

f%a%rigid

%spike%regar

dless%of%the

%ma

terial%used.%

e. Explo

sives,%ga

ses%ot

her%than%a

ir,%che

mical%re

action

,%pyro

technics,%electric%o

r%electronic%de

vices,%

elastic%p

owere

d%flight%ass

ists,%thro

wing%de

vices,%remo

te%con

trols%a

nd%tethe

rs%are

%prohibited

%at%an

y%tim

e.%All%e

nergy

%imparted%to%the%rocke

t%at%la

unch%mu

st%origin

ate%fro

m%the

%water/air%pres

sure%com

bination.%

f. All%ro

ckets%mu

st%be%launche

d%using%th

e%launch

er%pro

vided%by%t

he%

superv

isor.%F

ins%an

d%othe

r%parts%added%to%the%p

ressur

e%vess

el%mu

st%be%

5%cm%or%h

igher%

above%t

he%level%of%the%bottle’s

%openin

g%to%ensur

e%roc

kets%fit%o

n%the%lau

ncher%(se

e%Figu

re%2).%%

g. Any%free

Ufall%reco

very%system

%is%allow

ed%pr

ovide

d%it%does%n

ot%vio

late%

any%othe

r%rule

;%how

ever,%the%recov

ery%system%mu

st%be%ju

dged%as%safe.%

h. Team

s%must

%arrive%a

t%the%co

mpetition%s

ite%re

ady%to%launch

.%Team

s%mu

st%bring%and%we

ar%safety

%glasse

s%for%lo

ading

,%launching,%an

d%retrieving

%their%rocke

ts.%Team

s!must!

also!prese

nt!lab

els!from

!the!p

ressure!

vesse

l!if!labels

!were

!remo

ved.%Following%th

e%safety%

OPTION A: Fold-‐over Fin with Tabs (Plastic pocket folder or Cereal Box) 1. Select Fin template and cut out around the

Tab. 2. Trace template onto Fin material ***Be sure

the Leading Edge is next to a Folded side! 3. Cut out Fins. 4. Mark and fold the Tabs out: 1.5 cm Tabs. 5. Fold and hot glue the two sides of each fin

together in the middle. **You can add extra material in the middle for added stability.

6. Center each fin to the marked lines on the Pressure Vessel.

7. Tape the tab of the fins to the vessel. *Be sure it is 5 cm from the opening of the bottle!

OPTION B: Thick Fin Glued to a Tab (Plastic CD, Chipboard, Cardboard, Corrugated Plastic)

1. Select Fin template and cut out without the

Tab. 2. Trace template onto Fin material. 3. Cut out Fins. 4. Cut out a rectangular Tab about 1 inch wide to

attach along the bottom of the fin. (Use scrap plastic bottle or scrap plastic pocket folder)

5. Hot glue each fin to a Tab. **Be sure it is straight!

6. Center each fin to the marked lines on the Pressure Vessel.

7. Tape the tab of the fins to the vessel. *Be sure it is 5 cm from the opening of the bottle!


9

Figure 2

3,#2,#1,#Blast#Off!##








8. IMPOUND:!!No%!










9

Figure 2

3,#2,#1,#Blast#Off!##








8. IMPOUND:!!No%!










9

Figure 2

3,#2,#1,#Blast#Off!##








8. IMPOUND:!!No%!









2013%NCSO%It’s%Elem

entary%Manual%

©2013%NCSO%%%Revised%1

0/5/13%%% 9

Figu

re 2

3,#2,#1,#Blast#Off!#

#1.

DESCRIPTION:!Prior%to%the%tournament,%teams!construct!tw

o!rockets%design

ed%to%stay%aloft%for%the%

greatest%am

ount%of%time.%

2. NCSCoS!ALIGN

MENT:!Grades%3U6%Scien

ce:%Science%and%Technology,%Scien

ce%as%Inquiry!

%3.

TEAM

!OF!UP!TO:!%2%

%4.

MAXIMUM

!!TIME:!!10%m

in.%

!5.

TEAM

S:!!Must!bring!labeled!rockets,!carbonated!beverage!b

ottle!labels!(if!removed),!and!safety!

glasses.%

%6.

EVENT!LEAD

ERS:!!W

ill%provide%w

ater%rocket%launcher,%water,%score%sheets,%and%timers.%

%7.

SAFETY!REQUIREMENTS:!Teams%m

ust%w

ear%eye%protection%d

uring%the%loading,%lau

nching,%and%

retrieving%of%their%rockets.%%

%8.

IMPO

UND:!!No%

!9.

THE!COMPETITION

:!%a. Rocket%pressure%vessels%are%the%part%of%the%rocket%that%attaches%to%the%lau

ncher%and%are%filled%with%

water%and%air.%The%rocket%pressure%vessel%must%be%made%out%of%a%single%2Uliter%plastic%carbonated%


eter%of%approxim

ately%2.2%cm%(a%1/2%inch%

Schedule%40%PVC%pipe%m


oved%from

%the%


b. On

ly!tape!must!be!used!to!attach!fins!and!other!co

mponents!to!the!pressure!vessel.!No!glues!

of!an

y!type!m

ay!be!u

sed!on!the!p

ressure!v

essel.!Glue!may!be!u

sed!in!other!parts!of!the!rocket!

assembly.!Metal!of!any!type!and!co

mmercial!model!ro

cket!parts!are!

prohibited!anyw

here!on!the!rocket.!!

c. The%structural%integrity%of%the%pressure%vessel%m

ust%not%be%altered.%This%

includes,%but%is%not%limited%to:%physical,%thermal,%or%chemical%dam

age%(e.g.,%

cutting,%sanding,%using%hot%or%super%glu

es).%Alteration%to%th

e%structural%

integrity%of%the%pressure%vessel%is%a%safety%violation%of%the%rocket%and%it%

must%not%be%launched.%

Event%supervisors%m

ust%assess%the%stru

ctural%

integrity%by%looking%through%the%nozzle%

and%sides%of%the%bottle%for%

discoloration,%bubbles,%th

inning%or%cuts%in%the%w

alls.%%

d. Rockets%m

ust%use%a%blunt%or%round%nose%w

ith%a%minimum

%radius%of%1.25

%cm,%for%safety%(see%Figu

re%1).%

Team

s%must%not%use%a%nose%that%is%sh

arp,%pointed,%or%co

nsisting%of%a%rigid

%spike%regardless%o

f%the%

material%used.%


elastic%p

owered%fligh

t%assists,%throwing%devices,%remote%controls%and%tethers%are%prohibited%at%any%

time.%All%energy%imparted%to%the%rocket%at%launch%must%originate%from%

the%w


f. All%rockets%must%be%launched%using%the%lau

ncher%provided%by%the%

supervisor.%Fins%an

d%other%parts%added%to%the%p

ressure%vessel%m

ust%be%


rockets%fit%on%the%launcher%(see%Figu

re%2).%%

g. Any%freeUfall%recovery%system%is%allowed%provided%it%does%n

ot%violate%

any%other%rule;%ho

wever,%the%recovery%system%must%be%judged%as%safe.%

h. Team

s%must%arrive%at%the%com

petition%site%ready%to%launch.%Teams%

must%bring%and%wear%safety%glasses%for%loading,%lau

nching,%and%retrieving%their%rockets.%Team

s!must!

also!present!labels!from

!the!pressure!vessel!if!labels!were!removed.%Following%th

e%safety%

2013%N

CSO%It’s

%Eleme

ntary%M

anual%

©2013

%NCSO%

%%Revise

d%10/5

/13%%% 9

Figure

2

3,#2,#1,#Bla

st#Off!#

#1.

DESCR

IPTION

:!Prior%to%

the%tou

rname

nt,%tea

ms!const

ruct!tw

o!rock

ets%designed

%to%stay%aloft

%for%the

%gre

atest%a

mount

%of%tim

e.%

2. NCSCo

S!ALIG

NMENT:!G

rades%3

U6%Science

:%Scien

ce%and%

Techno

logy,%S

cience

%as%Inq

uiry!

%3.

TEAM

!OF!UP

!TO:!%2%

%4.

MAXIM

UM!!TI

ME:!!10%m

in.%!

5. TEAM

S:!!Mu

st!brin

g!label

ed!roc

kets,!c

arbona

ted!be

verage

!bottle

!labels

!(if!remo

ved),!a

nd!safety!

glasse

s.%%

6. EVENT!L

EADERS:

!!Will%p

rovide

%water%roc

ket%lau

ncher,%

water,%sc

ore%sheet

s,%and%

timers

.%%

7. SAF

ETY!R

EQUIR

EMENTS:

!Team

s%must

%wear%e

ye%pro

tection

%during%th

e%loadi

ng,%lau

nching

,%and%

retriev

ing%of%the

ir%rock

ets.%%

%8.

IMPO

UND:!!No

%!

9. TH

E!COM

PETIT

ION:!%

a. Rock

et%pres

sure%vess

els%are

%the%pa

rt%of%th

e%rocke

t%that%a

ttaches

%to%the

%launch

er%and%

are%fill

ed%wit

h%water%an

d%air.%The

%rocke

t%pres

sure%v

essel%m

ust%be

%made%

out%of%

a%sing

le%2Uliter%pla

stic%carbo

nated%

bevera

ge%bot

tle%wit

h%a%ne

ck/noz

zle%op

ening%

interna

l%diam

eter%of%ap

proxim

ately%2

.2%cm%(

a%1/2%

inch%

Schedu

le%40%P

VC%pip

e%must

%fit%tig

htly%ins

ide%the

%nozzle

%openi

ng).%La

bels%m

ay%be%

remove

d%from

%the%

bottle%

but%lab

els%mu

st%be%pres

ented%at%t

he%safety

%inspec

tion.%

b. Only

!tape!m

ust!be

!used!

to!attach

!fins!and!other

!comp

onents

!to!the!p

ressur

e!vess

el.!No!glu

es!of!a

ny!typ

e!may!

be!use

d!on!the!

pressu

re!ves

sel.!Gl

ue!ma

y!be!u

sed!in!

other!par

ts!of!th

e!rock

et!ass

embly

.!Meta

l!of!an

y!type

!and!c

omme

rcial!m

odel!ro

cket!part

s!are!

prohib

ited!a

nywher

e!on!the!

rocket

.!!c. T

he%stru

ctural%

integrit

y%of%th

e%pres

sure%v

essel%m

ust%no

t%be%a

ltered.%Th

is%includ

es,%but

%is%not

%limited

%to:%ph

ysical,%th

ermal,%or%c

hemical%da

mage%(e.g

.,%cut

ting,%sa

nding,%us

ing%ho

t%or%supe

r%glue

s).%Altera

tion%to%th

e%stru

ctural%

integrit

y%of%th

e%pres

sure%v

essel%i

s%a%safety

%violati

on%of%t

he%roc

ket%an

d%it%

must%

not%be

%launc

hed.%E

vent%s

upervis

ors%m

ust%as

sess%t

he%stru

ctural%

integrit

y%by%l

ooking

%throu

gh%the

%nozzle

%and%s

ides%o

f%the%

bottle%

for%

discolora

tion,%bu

bbles,%

thinnin

g%or%cu

ts%in%th

e%walls

.%%d. R

ockets%mu

st%use%a

%blunt%o

r%round

%nose%w

ith%a%m

inimum

%radius%of%

1.25%cm,%for%saf

ety%(se

e%Figu

re%1).%

Teams%mu

st%not%use

%a%nose

%that%i

s%shar

p,%poin

ted,%or

%consistin

g%of%a%

rigid%s

pike%rega

rdless

%of%the

%ma

terial%use

d.%e. E

xplosives

,%gases

%other

%than%

air,%ch

emical%re

action

,%pyro

techni

cs,%electri

c%or%e

lectronic%de

vices,%

elastic

%powered

%flight%a

ssists,%thr

owing

%devices,%

remote

%contr

ols%an

d%tethe

rs%are%pro

hibited

%at%any

%tim

e.%All%e

nergy%imp

arted%

to%the%

rocket

%at%lau

nch%mu

st%origi

nate%fr

om%

the%wa

ter/air%pr

essure

%combin

ation.%

f. All%r

ockets%m

ust%be

%launc

hed%us

ing%th

e%laun

cher%p

rovide

d%by%t

he%sup

ervisor.%F

ins%an

d%othe

r%parts%ad

ded%to%

the%press

ure%vesse

l%must

%be%

5%cm%

or%hig

her%ab

ove%th

e%leve

l%of%th

e%bottle’s

%openi

ng%to%

ensure

%roc

kets%fit%on

%the%lau

ncher%(

see%Fig

ure%2).

%%g. A

ny%freeUfa

ll%reco

very%system

%is%allo

wed%p

rovide

d%it%do

es%not

%violate

%any

%other%r

ule;%ho

wever

,%the%re

covery

%system

%must%b

e%judge

d%as%sa

fe.%h. T

eams%m

ust%ar

rive%at%th

e%com

petitio

n%site%

ready%

to%lau

nch.%Team

s%mu

st%bring%and%

wear%s

afety%g

lasses%f

or%load

ing,%lau

nching

,%and%re

trievin

g%their%

rocket

s.%Team

s!must

!als

o!pres

ent!label

s!from

!the!p

ressur

e!vess

el!if!l

abels!we

re!rem

oved.%Fol

lowing

%the%s

afety% 2013%NCSO%It’s%Elementary%Manual%

©2013%NCSO%%%Revised%10/5/13%%%

9

Figure 2

3,#2,#1,#Blast#Off!##

1. DESCRIPTION:!Prior%to%the%tournament,%team

s!construct!two!rockets%designed%to%stay%aloft%for%the%greatest%am

ount%of%time.%

2. NCSCoS!ALIGNMENT:!Grades%3U6%Science:%Science%and%Technology,%Science%as%Inquiry!

%3. TEAM

!OF!UP!TO:!%2%%

4. MAXIM

UM!!TIM

E:!!10%min.%

!5. TEAM

S:!!Must!bring!labeled!rockets,!carbonated!beverage!bottle!labels!(if!rem

oved),!and!safety!glasses.%%

6. EVENT!LEADERS:!!Will%provide%water%rocket%launcher,%water,%score%sheets,%and%tim

ers.%%

7. SAFETY!REQUIREMENTS:!Team

s%must%wear%eye%protection%during%the%loading,%launching,%and%

retrieving%of%their%rockets.%%%

8. IMPOUND:!!No%

!9. THE!COM

PETITION:!%a. Rocket%pressure%vessels%are%the%part%of%the%rocket%that%attaches%to%the%launcher%and%are%filled%with%water%and%air.%The%rocket%pressure%vessel%m


beverage%bottle%with%a%neck/nozzle%opening%internal%diameter%of%approxim

ately%2.2%cm%(a%1/2%inch%

Schedule%40%PVC%pipe%must%fit%tightly%inside%the%nozzle%opening).%Labels%m

ay%be%removed%from

%the%bottle%but%labels%m

ust%be%presented%at%the%safety%inspection.%b. Only!tape!m

ust!be!used!to!attach!fins!and!other!components!to!the!pressure!vessel.!No!glues!

of!any!type!may!be!used!on!the!pressure!vessel.!Glue!m

ay!be!used!in!other!parts!of!the!rocket!assem

bly.!Metal!of!any!type!and!com

mercial!m

odel!rocket!parts!are!prohibited!anywhere!on!the!rocket.!!

c. The%structural%integrity%of%the%pressure%vessel%must%not%be%altered.%This%

includes,%but%is%not%limited%to:%physical,%therm

al,%or%chemical%dam

age%(e.g.,%cutting,%sanding,%using%hot%or%super%glues).%Alteration%to%the%structural%integrity%of%the%pressure%vessel%is%a%safety%violation%of%the%rocket%and%it%must%not%be%launched.%Event%supervisors%m

ust%assess%the%structural%integrity%by%looking%through%the%nozzle%and%sides%of%the%bottle%for%discoloration,%bubbles,%thinning%or%cuts%in%the%walls.%%

d. Rockets%must%use%a%blunt%or%round%nose%with%a%m

inimum


Teams%m



elastic%powered%flight%assists,%throwing%devices,%remote%controls%and%tethers%are%prohibited%at%any%

time.%All%energy%im


%the%water/air%pressure%com

bination.%f. All%rockets%m

ust%be%launched%using%the%launcher%provided%by%the%supervisor.%Fins%and%other%parts%added%to%the%pressure%vessel%m

ust%be%5%cm

%or%higher%above%the%level%of%the%bottle’s%opening%to%ensure%rockets%fit%on%the%launcher%(see%Figure%2).%%

g. Any%freeUfall%recovery%system%is%allowed%provided%it%does%not%violate%

any%other%rule;%however,%the%recovery%system%must%be%judged%as%safe.%

h. Teams%m


s%must%bring%and%wear%safety%glasses%for%loading,%launching,%and%retrieving%their%rockets.%Team

s!must!

also!present!labels!from!the!pressure!vessel!if!labels!were!rem


2013%NCSO%It’s%Elementary%Manual%©2013%NCSO%%%Revised%10/5/13%%%9

Figure 2

3,#2,#1,#Blast#Off!##








8. IMPOUND:!!No%!

9. THE!COMPETITION:!%a. Rocket%pressure%vessels%are%the%part%of%the%rocket%that%attaches%to%the%launcher%and%are%filled%with%water%and%air.%The%rocket%pressure%vessel%must%be%made%out%of%a%single%2Uliter%plastic%carbonated%beverage%bottle%with%a%neck/nozzle%opening%internal%diameter%of%approximately%2.2%cm%(a%1/2%inch%Schedule%40%PVC%pipe%must%fit%tightly%inside%the%nozzle%opening).%Labels%may%be%removed%from%the%bottle%but%labels%must%be%presented%at%the%safety%inspection.%


c. The%structural%integrity%of%the%pressure%vessel%must%not%be%altered.%This%includes,%but%is%not%limited%to:%physical,%thermal,%or%chemical%damage%(e.g.,%cutting,%sanding,%using%hot%or%super%glues).%Alteration%to%the%structural%integrity%of%the%pressure%vessel%is%a%safety%violation%of%the%rocket%and%it%must%not%be%launched.%Event%supervisors%must%assess%the%structural%integrity%by%looking%through%the%nozzle%and%sides%of%the%bottle%for%discoloration,%bubbles,%thinning%or%cuts%in%the%walls.%%

d. Rockets%must%use%a%blunt%or%round%nose%with%a%minimum%radius%of%1.25%cm,%for%safety%(see%Figure%1).%Teams%must%not%use%a%nose%that%is%sharp,%pointed,%or%consisting%of%a%rigid%spike%regardless%of%the%material%used.%

e. Explosives,%gases%other%than%air,%chemical%reaction,%pyrotechnics,%electric%or%electronic%devices,%elastic%powered%flight%assists,%throwing%devices,%remote%controls%and%tethers%are%prohibited%at%any%time.%All%energy%imparted%to%the%rocket%at%launch%must%originate%from%the%water/air%pressure%combination.%

f. All%rockets%must%be%launched%using%the%launcher%provided%by%the%supervisor.%Fins%and%other%parts%added%to%the%pressure%vessel%must%be%5%cm%or%higher%above%the%level%of%the%bottle’s%opening%to%ensure%rockets%fit%on%the%launcher%(see%Figure%2).%%

g. Any%freeUfall%recovery%system%is%allowed%provided%it%does%not%violate%any%other%rule;%however,%the%recovery%system%must%be%judged%as%safe.%

h. Teams%must%arrive%at%the%competition%site%ready%to%launch.%Teams%must%bring%and%wear%safety%glasses%for%loading,%launching,%and%retrieving%their%rockets.%Teams!must!also!present!labels!from!the!pressure!vessel!if!labels!were!removed.%Following%the%safety%

Zone for Center of Gravity

Add Mass to this area

FIN LOCATION STRIPS 1. Cut out the strips for your selected # of fins. 2. Tape together. 3. Wrap around pressure vessel. 4. Mark BOTH sides of strip on Pressure Vessel. 5. Then connect the marks to make a looooooooong line.

3 FIN

LOCATIO

N STRIP

11. 3 CM

3 FIN DISTAN

CE: 11.3 CM

TAPE HERE

Tape this side on the tab.

3 FIN

LOCATIO

N STRIP

11. 3 CM

3 FIN DISTAN

CE: 11.3 CM

MARK BOTH SIDES

MARK BOTH SIDES

MARK BOTH SIDES

4 FIN

LOCATIO

N STRIP

8.5 CM

3 FIN DISTAN

CE: 11.3 CM

4 FIN

LOCATIO

N STRIP

8.5 CM

3 FIN DISTAN

CE: 11.3 CM

TAPE HERE

4 FIN

LOCATIO

N STRIP

8.5 CM

3 FIN DISTAN

CE: 11.3 CM

4 FIN

LOCATIO

N STRIP

8.5 CM

3 FIN DISTAN

CE: 11.3 C÷÷///M

MARK BOTH SIDES

MARK BOTH SIDES

MARK BOTH SIDES


9

Figure 2

3,#2,#1,#Blast#Off!##








8. IMPOUND:!!No%!










9

Figure 2

3,#2,#1,#Blast#Off!##








8. IMPOUND:!!No%!










9

Figure 2

3,#2,#1,#Blast#Off!##








8. IMPOUND:!!No%!









MARK BOTH SIDES

Date post:	13-Apr-2015
Category:	Documents
Upload:	jamie-munn
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3 STEM Water Rocket How to With Fin Templates

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