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