Physical and Chemical Changes Quiz

Quiz
•
Science
•
6th - 8th Grade
•
Hard
+1
Standards-aligned
Juretta Carr
Used 2+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pablo notices that ice cream begins to melt when left out at room temperature. What is Pablo observing?
a physical change
a chemical change
a chemical reaction
the formation of a new substance
Tags
NGSS.MS-PS1-4
NGSS.MS-PS3-4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A statue and a coin are made out of exactly the same materials. Which property would you claim will likely be the same for both the statue and the coin?
mass
reactivity
volume
shape
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When paper is burned, the mass of the remaining ash is less than the mass of the original paper. Which reasoning best explains this result?
The ash has less volume than the paper.
Some of the matter is destroyed during the reaction.
The mass of the ash cannot be accurately determined.
Some of the products of the reaction were given off as a gas.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Marianne wants to study the chemical properties of iron. Which would provide the evidence she needs to do this?
Marianne could hit the sample with a hammer.
Marianne could observe the sample's reactivity with moist air.
Marianne could find the mass of the sample by using a balance.
Marianne could find the density of the sample by dividing its mass by its volume.
Tags
NGSS.MS-PS1-2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Alison finds the total mass of a sample of baking soda, a balloon, and a glass container with vinegar in it. She adds the baking soda to the vinegar and immediately places the balloon over the mouth of the container. After the reaction is complete, she again finds the total mass of the system. Which claim is true about this investigation?
Mass is gained during the reaction because a chemical change is taking place.
The mass does not change because chemical changes observe the law of conservation of mass.
Mass is lost during the reaction because the gas is less dense than the baking soda or vinegar.
Mass is lost during the reaction because the gas can change in volume but baking soda and vinegar cannot.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The element silver has both physical and chemical properties, some of which do not change when the size of the sample changes. Which of these choices is a physical property that does not change when the size of the sample changes?
flammability
volume
density
reactivity with oxygen
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A physical change does not involve a change in the substance's chemical identity. Which of these statements describes a physical change?
A banana starts to smell as it ripens.
Onions taste sweeter after being cooked.
Aluminum cans get crushed before recycling.
Copper turns green when exposed to air.
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