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PS 5 Changes In Matter
Test Description: Review of PS 5
Instructions: Answer all questions to get your test result.
1) What is an example of a physical change?
A
Adding bleach to a washer of clothes
B
eating and digesting food
C
rusting iron
D
boiling point
2) What is NOT an example of a physical property?
A
boiling point
B
texture
C
flammability
D
color
3) Which is NOT an example of a physical change?
A
molding clay
B
chopping wood
C
souring milk
D
bending copper wire
4) What is NOT a physical change?
A
burning cheese
B
freezing cheese
C
melting cheese
D
vaporizing cheese ie beyond boiling but it's still cheese
5) When matter undergoes a change in form, but the chemical make up is NOT changed, it is a
A
chemical reaction
B
nuclear change
C
chemical change
D
physical change
6) What is an example of an exothermic reaction?
A
grilling chicken
B
baking cake
C
exploding fireworks
D
popcorn popping
7) What is an example of an endothermic reaction?
A
burning coals
B
exploding fireworks
C
grilling a hamburger
D
smouldering coals...they are almost out
8) Atoms on the left side of the arrow in a chemical equation are the
A
products
B
coefficients
C
subscripts
D
reactants
9) Atoms on the right side of the arrow in a chemical equation are the
A
coefficients
B
subscripts
C
reactants
D
products
10) Which process do hydrogen atoms use to make the Sun’s energy?
A
nuclear fusion
B
nuclear meltdown
C
nuclear fission
D
meltdown isotope
11) Which process is used by nuclear power plants to produce energy?
A
nuclear fission
B
nuclear isotope
C
nuclear meltdown
D
nuclear fusion
12) Due to the Law of Conservation of Matter (Mass) chemical reactions must be balanced by changing
A
superscripts in the formula
B
where the arrow is placed
C
coefficients in front of the formulas
D
subscripts in the formulas
*select an answer for all questions
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