Do NowRemember: Silent during the Do Now

1.Pick up the handouts

2.Find a seat

3.Fill out sheets: Contact Info and Survey

4.Put your name on a popsicle stick

Who is Ms. Hughes?

Objective

The point of today is to…

Explain why I am

taking this class.

Chemistry

• The study of matter and its changes

• What’s matter?– Everything around us– More on that later…

Why Chemistry?Why Mastery?

Just Breathe!

1. Write

If you had $64,000, what would you buy, where

would you go, what would you do?

2. PairSeat 1 with Seat 2Seat 3 with Seat 4

Read your partner your answers to the questions.

Write down interesting things they say.

Make sure you know their name!

3. Share

Start with team member 1

Share your partner’s name and response

Goal…Average Salary vs. Education

0

10000

20000

30000

40000

50000

60000

70000

high schooldropout

high schoolgraduate

college graduate college SCIENCEmajor

Education Level

Sal

ary

($)

Scientific MethodOur way of asking questions about the world and getting

answers

It’s Demo Time heat

C3H8O (l)+ O2 (g) CO2 (g) + H2O (l)

1. Observation

•The isopropyl alcohol burns like a candle.

2. Ask a Question

How does the size of the container and the shaking affect the burning?

3. Background information

What do you know about the chemicals involved?

4. Form a hypothesis

Educated guess.

What do you think is going to happen?

5. MaterialsIsopropyl alcoholGraduated cylinderSplintLighterTongsBottle

6. Procedure1. Measure out 100 mL of isopropyl

alcohol using a graduated cylinder.

2. Pour isopropyl alcohol into bottle.

3. Move the alcohol around the bottle.

4. Light a splint and place into bottle using tongs.

5. Clean up!

7 & 8Complete these on your own

Remember to fill in the matching question

-you may discuss quietly with your group.

Guess the Rule…Column 1 Column 2

Glue feels sticky CP3 is the best player in the NBA

The student hears the bell ringing

The man is in a hurry

Ms Hughes is 5’ 7” Pickles smell gross

Wait!

1. Write down what you think the rule is for separating the 2

2. Partners share

3. Group shares

Guess the Rule…Column 1 Column 2

Glue feels sticky CP3 is the best player in the NBA

The student hears the bell ringing

The man is in a hurry

Ms Hughes is 5’ 7” Pickles smell gross

-Explain why observations are important

- Write detailed observations -Make inferences

Today I will be able to…

Key Point 1: An observation is

• Gathering and collecting information (data) using your five senses and tools– Sight– Touch– Hear– Smell– Ruler– thermometer

• Ex: I taste that chocolate is sweet

Key Point 2:An inference

is an interpretation of your observationsEx: I think this is a snickers because it tastes like chocolate and peanuts

The Difference

• Key Point #3: Observations are facts, and can’t be wrong. Inferences are beliefs, and can be wrong.

• Example:–Michael leaves the movie theatre, and

sees that the ground is wet. So Michael thinks that it rained.

“Beyonce looksgood”

• Observation or inference?

“Beyonce looksgood”

• Not an observation!!!– It is not a fact that

Beyonce looks good. – Some people disagree.

• This is an inference!!!– Whoever said this

believes that Beyonce is attractive because of facts: she has clear skin, shiny hair, an hourglass figure, etc.

Observation or Inference? Part I

• This kid looks like a dork.

• The cowboy hat is brown.

• Cake tastes delicious.

• The bandana is red.

• I believe it is his birthday.

Partner Up

• Partners take turns answering

• Classify and explain why

• If your partner doesn’t explain why, ask them!

• If you disagree, you may ask your group

• If the whole group disagrees, all raise hands

Observation or Inference? Part I

• This kid looks like a dork.

• The cowboy hat is brown.

• Cake tastes delicious.

• The bandana is red.

• I believe it is his birthday.

Observation or Inference? Part II

• Make five observations about the classroom, and three inferences based on those observations.

Observations Inferences

1. 1.

2. 2.

3. 3.

4.

5.

Observation or Inference? Part III

• Partner up!

• Take turns with your partner

• Read off an observation or inference

• Partner must classify

• Write down good examples from your partner

Key Point Wrap-up#1: An observation is gathering

information about the world through our five senses and tools

#2: An inference is an interpretation of an observation

#3: Observations are facts, and can’t be wrong. Inferences are beliefs, and can be wrong.

Homework

• Materials by Mon– See me immediately if this is a problem

• Signed letter home by Fri!

• Turn in: contact form and survey COMPLETED (these are your first class points!)

Daily QuizComplete your daily quiz

silently.

When time is up, we will grade them.

Daily Quiz Graded

On the paper you grade write:“Graded by (your name)”Correct an wrong answers. Write the total correct at top.1. B2. D3. C4. G5. F6. A7. E

Congratulations onyour first day as chemists!

• Top 5: how’d we do?

• Do not lose your materials!

• Remember: binder/materials due Mon so we can be organized and successful!