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MM Mid Unit

Last updated 15 days ago

9 questions

Directions: Read and answer each of the questions below to show your science mastery.

2

Are these two liquids made from the same molecules? Why or why not? (2 pts)
A. Yes. Both of the substances are liquid, so they must be made up of the same molecules
B. Yes. Both of the substances have a clear color, so they must be made up of the same molecules
C. No. Substance A is made of atoms and Substance B is made of molecules
D. No. The two substances have different properties, so they must be made of different molecules

Melanie looks in a reference book and finds the properties of 4 different liquids.

Use this chart to answer Question 2 and 3

2

Substance A is most likely which liquid? (2 pts)
A. Water
B. Canola Oil
C. Rubbing Alcohol
D. Corn Syrup

2

Substance B is most likely which liquid? (2 pts)
A. Water
B. Canola Oil
C. Rubbing Alcohol
D. Corn Syrup

2

Which model best represents the particles (molecules) in the water? (2 pts)

2

Which of these molecules is moving the fastest? (2 pts)

A. The molecules in the water used in the experiment
B. The molecules in the air around the experiment
C. The molecules in the paper used in the experiment
D. The molecules in the ink used in the experiment

Use this Model to answer Question 6.

Follow this list. It shows how many points you will get for each part of your paragraph

4

Is the marker ink a mixture or a substance? Explain how you know. (4 pts)

Claim, answer the question
C: The marker ink is a _________ (CHOOSE 1: mixture or substance)

Use Evidence (information to support/prove you answer is correct) from the model
E: In the model, it shows _

Reasoning/Explain your answer in your claim.
R: This means the marker ink is a _ (CHOOSE 1: mixture or substance) because ________

Type your paragraph (at least 3 sentences!) below.

Use this Model to answer Question 7.

2

Which statement best explains what happened to the ink? (2 pts)

A. The water made the ink change color to red and blue
B. The water made the ink molecules stretch and get bigger
C. The water moved the blue ink molecules farther up the paper than the red ink molecules
D. The water turned the ink from a substance into a mixture.

2

Fabian created 3 different models of the molecules in the marker ink before the experiment. Which model is the most accurate (correct)? (2 pts)

Use this Model to answer Question 9.

Follow this list. It shows how many points you will get for each part of your paragraph

6

Why did the marker ink separate into different colors? (6 pts)

Claim, answer the question
C: The marker ink separated because __

Use Evidence (information to support/prove you answer is correct) from the model
E: In the model, it shows _

Reasoning, explain your answer in your claim.
R: This means

__________________________________________

Type your paragraph (at least 3 sentences!) below.

OR you can use Evidence from the Pasta Model, Break it Down book, or the Food Coloring Chromatography demonstration.