Post on 20-Jan-2016
transcript
Warm up• Write in notebook
• What are the signs of a chemical reaction?
Can you name these items?
The answers are …
Triple-beam Balance
Beaker
Safety Goggles Telescope
Test Tube
Eyedropper
Graduated Cylinder
Can you name these items?
The answers are …
Vernier Caliper
Flask Spring ScaleMortar &
Pestle
Microscope Test Tube
Name the weather equipment.What does it measure?
Spectroscope• Scientists use tools to help them
understand the universe, galaxies, stars, and planets. A major tool used to gather information about these objects is called a spectroscope. The scientific technique that utilizes the spectroscope is called spectroscopy
• HOW DO WE KNOW SO MUCH ABOUT STARS?
• Being that humans have never actually visited another galaxy, a star, or a planet, how do we know so much about them?
• Scientists learn a lot about these objects from the light that they send us. The light received can tell us about the objects.
What piece of equipment?What is it used for?
Find the density of the object below.
An object was dropped into a graduated cylinder that contained 40 mL. Determine the volume of that object.
The object was placed on a triple beam balance.
20
0
5.4
Image from http://www.edinformatics.com/math_science/mass.htm
The solution …
Volume = Volume of water & object – volume of water
V = 65 mL – 40 mL
V = 25 mL
M = 25.4 g
Density = Mass ÷ Volume
D = 25.4 g ÷ 25 mL
D = 1.01 g/mL
** The object will sink!
Find the density of the object below.
The mass
An object was dropped into a graduated cylinder that contained 20 mL. Determine the volume of that object.
The object was placed on a triple beam balance.
Image from http://ritter.tea.state.tx.us/ Image from http://genchem.rutgers.edu/bal3b2.html
The solution …
Volume = Volume of water & object – volume of water
Volume = 43 mL – 20 mL
V = 23 mL
M = 373.3 g
Density = Mass ÷ Volume
D = 373.3 g ÷ 23 mL
D = 16.23 g/mL
Use a periodic table and your knowledge of the element families to identify each element by name.
1. I am a Noble Gas that is found in the 6th period.
2. I am a member of the Alkaline Earth family and have 88 electrons.
3. I am a transition metal that is a liquid at room temperature.
4. I am a member of the Carbon family that is found in the 5th period.
5. I am a Halide (group 7) that is a gas at room temperature and have 3 energy levels.
The answers are …
Radon
Radium
Mercury
Tin
Chlorine
1. I am a Noble Gas that is found in the 6th period.
2. I am a member of the Alkaline Earth family and have 88 electrons.
3. I am a transition metal that is a liquid at room temperature.
4. I am a member of the Carbon family that is found in the 5th period.
5. I am a Halide that is a gas at room temperature and have 3 energy levels.
Use your knowledge of the relationships in the periodic table to answer each question.
A B C
D E F
G H I
1. If Element B has 14 protons, how many would an atom of Element C have?
2. If Element G has 3 valance electrons, how many would Element A have?
3. If Element I has 3 energy levels, how many would Element F have?
4. If Element D has 22 electrons, how many would Element F have?
5. If Element E has 4 valence electrons, how many would Element I have?
Mystery Table
The answers are …
A B C
D E F
G H I
1. If Element B has 14 protons, how many would an atom of Element C have?
2. If Element G has 3 valance electrons, how many would Element A have?
3. If Element I has 3 energy levels, how many would Element F have?
4. If Element D has 22 electrons, how many would Element F have?
5. If Element E has 4 valence electrons, how many would Element I have?
15
3
2
26
5
A. Used to crack open seeds
B. Used to tear meat
C. Used to bore into trees for insects
D. Used to get nectar in flowers
E. Used to strain plants and animals from water
F. Used to spear fish
G. Used to catch and eat insects
H. A multipurpose bill used for fruit, seeds, insects, fish, and other animals
http://www.normanbirdsanctuary.org/beak_adaptations.shtml
#3
#5
#7
#2
#4
#8
#1
#6
http://www.normanbirdsanctuary.org/beak_adaptations.shtml
#4
A. Seed eaters like sparrows and cardinals have short, thick conical bills for cracking seed.
#8 B. Birds of prey like hawks and owls have sharp, curved bills for tearing meat.
#3
C. Woodpeckers have bills that are long & chisel-like for boring into wood to eat insects.
#7
D. Hummingbird bills are long and slender for probing flowers for nectar.
#5
F. Birds like herons & kingfishers have spear-like bills adapted for fishing.
#2
G. Insect eaters like warblers have thin, pointed bills.
E. Some ducks have long, flat bills that strain small plants and animals from the water.
#6
H. Crows have a multi-purpose bill that allows them to eat fruit, seeds, insects, fish, & other animals.
#1
1
2
3 5
76
8
Label the parts of the cell.
Image: http://fds.oup.com/www.oup.co.uk/images/oxed/children/yoes/nature/plantcell.jpg
4
Cytoplasm Cell Wall Vacuole Endoplasmic Reticulum (ER)
Nucleus Mitochondria Cell Membrane Chloroplast
1
2
3 5
76
8
The answers are …
Cytoplasm
Nucleus
Chloroplast
Cell Membrane
Cell Wall
Mitochondria
Vacuole
Endoplasmic Reticulum (ER)4
Label the parts of the cell.
A. Cytoplasm
B. Cell membrane
C. Golgi Body
D. Lysosome
E. Endoplasmic Reticulum
F. Nucleus
G. Mitochondria
H. Ribosome
1
2
3
4 567
8
Image: http://web.jjay.cuny.edu/~acarpi/NSC/13-cells.htm
The answers are …
1 –
2 –
3 –
4 –
5 –
6 –
7 –
8 –
1
2
3
4 567
8
B. Cell membrane
E. Endoplasmic Reticulum
F. Nucleus
H. Ribosome
D. Lysosome
G. Mitochondria
C. Golgi Body
A. Cytoplasm
1. Predict the offspring from a cross between a purebred tall pea plant and a hybrid tall plant. Use T for tall and t for short.
(a) Give the genotypes. Purebred Tall = ____ Hybrid Tall = ____
(b) Create a Punnett square to determine the genotypes for the offspring.
(c) What is the probability that a plant would be tall? _______ %
(d) What is the probability that a plant would be short? _______ %
2. Predict the offspring from a cross between two hybrid tall pea plants.
(a) Give the genotype for a hybrid tall plant. ______
(b) Create a Punnett square to determine the genotypes for the offspring.
(c) What is the probability that a plant would be tall? _____ %
(d) What is the probability that a plant would be short? _____ %
(e) If you were to plant 100 seeds from this cross, how many would you expect to be tall?
1. Predict the offspring from a cross between a purebred tall pea plant and a hybrid tall plant. Use T for tall and t for short. (a) Give the genotypes. Purebred Tall = ____ Hybrid Tall = ____
(b) Create a Punnett square to determine the genotypes for the offspring.
(c) What is the probability that a plant would be tall?
(d) What is the probability that a plant would be short?
T
T
T t
TT Tt
TT Tt
0%
100%
TT Tt
2. Predict the offspring from a cross between two hybrid tall pea plants.
(a) Give the genotype for a hybrid tall plant. ______
(b) Create a Punnett square to determine the genotypes for the offspring.
(c) What is the probability that a plant would be tall?
(d) What is the probability that a plant would be short?
(e) If you were to plant 100 seeds from this cross, how many would you expect to be tall?
T
t
T t
TT Tt
Tt tt
25%
75%
Tt
25% of 100 = 25 plants
Identify the three components of the cardiovascular system.
1. __________________________
2. __________________________
3. __________________________
The components are . . .
1. Heart
2. Blood vessels
3. Blood
Identify the organs of excretion and their function.1.
2.
3.
4.
The organs of excretion are. . .
1. kidneys filter blood
2. skin sweat (salt & H2O)
3. lungs exhale CO2 & H2O
4. liver recycle RBC’s
Describe the functions of the respiratory system.
1. ______________________________
2. ______________________________
The functions are . . .
1. take in air – use O2
2. eliminate waste (CO2)
Determine which of the following are direct and/or indirect rays of sunlight and
discuss how they effect the Earth.
Image from http://ag.arizona.edu/watershedsteward//resources/module/Climate/images/indirect_rays.jpg
A.
B.
direct sun – same amount of energy but a greater concentration over a smaller area
Indirect
Direct
indirect – same amount of energy spread over a larger area of the earth therefore it is not as intense
Determine the season in the northern and southern hemisphere.
A.
B.
C.
D.
E.
F.
G.
H
Image from http://www.uwm.edu/~kahl/CoVis/Seasons/
Winter
Winter
Summer
Summer
Spring
AutumnAutumn
Spring
The answers are . . .
Identify the phase of the moon.
Image from http://www.mattastro.com/moon.html
A. B.
C. D.
The phases are . . .A. B.
C. D.
Full Moon First Quarter
Waxing Gibbous Waning Crescent
Identify the phase of the moon.
A.
B.
The phases are . . .
A.
B.
Third Quarter Moon
New Moon
Choose the correct answer…Choose the correct answer…
#3
P. Reardon 2008 – Based on “Science Starters” by T. Trimpe at http://sciencespot.net/
1. What is the name of the super continent believed to have been present millions of years ago?
Nazca Laurasia Pangaea Gondwanaland
2. Which of these statements isn't evidence for the theory of continental drift?
-The bulge of South America fitting into the indent in Africa
-Similar fossils found in South America and Southern Africa
-Volcanoes on the edges of existing plate boundaries
Choose the correct answer…Choose the correct answer…
#3
P. Reardon 2008 – Based on “Science Starters” by T. Trimpe at http://sciencespot.net/
1. What is the name of the super continent believed to have been present millions of years ago?
Nazca Laurasia Pangaea Gondwanaland
2. Which of these statements isn't evidence for the theory of continental drift?
-The bulge of South America fitting into the indent in Africa-Similar fossil remains being found in South America and Southern Africa-Volcanoes on the edges of existing plate boundaries
Pangaea
-Volcanoes on the edges of existing plate boundaries
The answers are…