Warm UpYour homework should be on your desk. Work silently.

Write a quality procedure and list materials to make a peanut butter and jelly sandwich.

Should have at least 3 materials and at least 5 steps.

Take 1

2. Ask a question

Scientific Method

1. Make an observation

3. Gather Background Information

4. Make a Hypothesis

5. Test the Hypothesis(Experiment)

6. Analyze Data

7. Draw Conclusions

8. Reflect

Continue describing and writing ‘quality’ hypotheses about demos…

It’s Demo Time!Chicken Liver…

I noticed that when you put chicken liver into hydrogen peroxide…

Observation?

So I asked “what will be the effect of adding heat to the mixture?”

Procedure

1. Measure 75 mL of hydrogen peroxide using a graduated cylinder.

2. Pour the hydrogen peroxide into the Erlenmeyer flask.

3. Use the tongs to place a piece of chicken liver in the hydrogen peroxide.

4. Light a wooden stick and then blow it out.5. Place the wooden stick into the Erlenmeyer

flask.6. Clean up!

Hypothesis

• Take a min to write your own

• Remember, a quality hypothesis does not have to be right!

Finish 7 + 8

• May discuss with group

Section: Notes

Name: _____________________

Date: ______________________

Period: _____________________

Words Ms. H’s definitions My definitions

Time for vocab!

divide your paper into three sections

1.Experiment

2.Materials

3.Procedure

“My definitions” section

• Write the definition in your own words• Draw a picture• Write an example• Write a sample problem• Use it in a sentence• Give synonyms and antonyms• Any other way you can think of to

REMEMBER the word

Chemistry

• The study of matter and its changes

Scientific methodA set of steps used to ask questions and

get answers about the real world

Objective

• Something a person wants to accomplish

Hypothesis

• An educated guess to your question

Observation

• A fact gathered and collected using your five senses and tools

Inference

• an interpretation of your observations

Testable

• Doable

• Measureable

• Recognizable

• Understandable

•Experiment: a test you do to answer a question

•Materials: the things you need to test your hypothesis.

•Procedure:

the instructions you need to follow to test your hypothesis.

Criteria

• What we use to evaluate the quality of something

Volume

• How much space something takes up

Graduated cylinder

• Measures volume precisely

• Measures in milliliters (mL)

• Read from the bottom of the meniscus

Beaker

• Less precise than a graduated cylinder

• Holds liquid

• Measures in mL

Erlenmeyer flask

• Small opening

• Good for mixing chemicals

• Measures in mL

• Less precise than a graduated cylinder

Add at least one other vocab word we used this week that you think was important

We will continue to add to our unit 1 vocab next week

You can put vocab at the back of your binder

Homework

• Complete vocab sheet if not finished

• Short mini vocab quiz on Monday

• Enjoy your weekend • Congratulations on your first week as

chemists

Daily Quiz

• Work silently

• We will check it when time is called

Daily Quiz Answers

• Give a point for each answer that is in a complete sentence.

• Top Ten: how’d we do?

• Prizes!!!