
Physical and Chemical Change Assessment
Authored by ERICA ANDIS
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11 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 4 pts
Click on the examples of physical changes:
Tearing paper
Trail Mix
Cutting hair
Dry ice sublimation
Baking cookies
2.
OPEN ENDED QUESTION
30 sec • Ungraded
What are 3 indicators that a chemical change has taken place?
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3.
MULTIPLE SELECT QUESTION
30 sec • 4 pts
Click on the chemical changes:
Baking a cake
Burning wood
Film canister rockets
Fireworks exploding
Tearing paper
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the Law of Conservation of Mass mean?
Mass cannot be created or distroyed.
Mass can be created or distroyed.
Mass can change states but cannot change back.
We need to recycle mass to save the Earth.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In our first experiment, we created a polymer. What is a polymer's main job?
To become a hard plastic that cannot be broken
To be both a solid and a liquid at the same time
To absorb and hold up to 100 times its mass
To condense and shrink masses
6.
OPEN ENDED QUESTION
30 sec • Ungraded
In complete sentences, describe what happened when we added Phenol Red to the baking soda and calcium chloride. Be descriptive.
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7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When we mixed the copper sulfate, hot water, and ammonia, why did the new chemical have less mass than the total of the starting materials?
The copper sulfate crystals dissolved into the liquids.
The hot water melted the copper sulfate crystals.
The ammonia destroyed the water.
The chemical change created a gas that was released into the air.
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