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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
rusting iron
B
boiling point
C
Adding bleach to a washer of clothes
D
eating and digesting food
2) What is NOT an example of a physical property?
A
flammability
B
texture
C
color
D
boiling point
3) Which is NOT an example of a physical change?
A
chopping wood
B
molding clay
C
bending copper wire
D
souring milk
4) What is NOT a physical change?
A
melting cheese
B
freezing cheese
C
burning 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
physical change
D
chemical change
6) What is an example of an exothermic reaction?
A
baking cake
B
exploding fireworks
C
grilling chicken
D
popcorn popping
7) What is an example of an endothermic reaction?
A
grilling a hamburger
B
burning coals
C
smouldering coals...they are almost out
D
exploding fireworks
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
subscripts
B
reactants
C
coefficients
D
products
10) Which process do hydrogen atoms use to make the Sun’s energy?
A
nuclear fission
B
nuclear meltdown
C
meltdown isotope
D
nuclear fusion
11) Which process is used by nuclear power plants to produce energy?
A
nuclear fusion
B
nuclear meltdown
C
nuclear fission
D
nuclear isotope
12) Due to the Law of Conservation of Matter (Mass) chemical reactions must be balanced by changing
A
subscripts in the formulas
B
coefficients in front of the formulas
C
superscripts in the formula
D
where the arrow is placed
*select an answer for all questions
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