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Conservation Is The Law
Test Description: Physical and chemical change. Law of Conservation of Mass
Instructions: Answer all questions to get your test result.
1) Which is an example of a physical change?
A
a camp fire
B
baking a cake
C
ice melting
D
milk going bad
2) Ripping paper is example of...
A
Change of mass
B
Physical change
C
Chemical change
D
Change of weight
3) During chemical change, atoms are reorganized. This makes what?
A
A different molecule with different properties
B
New atoms
C
A separated mixture
D
The atoms can't be reorganized
4) Which is a chemical change?
A
A glass breaks
B
Cloud changes shape
C
Strawberries that went bad smell horrible
D
Melted ice
5) Which is a chemical change?
A
Metal rusting
B
A baseball breaking a window
C
A balloon getting bigger
D
Water temperature decreasing
6) Think of lab with balloon. Mass is found before and after vinegar & baking soda mixed. Find what?
A
Mass decreased b/c gas less dense
B
Mass decreased b/c the volume of gas can change
C
Mass increased
D
Mass did not change
7) Why did waffle burn?
A
Temperature increased
B
Temperature decreased
C
Not good kind of waffle
D
Waffle too big
8) Which is a chemical change?
A
Cutting hair
B
Frying eggs
C
Making tea
D
Drying clothes
9) Wood becoming ash is example of...
A
Absorption
B
Chemical change
C
Physical change
D
Displacement
10) What kinds of changes obey Law of Conservation of Mass?
A
Physical and chemical changes
B
Only physical changes
C
Only chemical changes
D
Only changes of state
*select an answer for all questions
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