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Physical And Chemical Change
Test Description: 1
Instructions: Answer all questions to get your test result.
1) Which of the following is a chemical change?
A
melting
B
bending
C
cutting
D
rusting
2) Which statement is true about physical changes and chemical changes?
A
physical and chemical changes can not happen at the same
B
chemical changes always produce new substances
C
physical changes can change both physical and chemical properties
D
chemical changes are not observable
3) Which of the following is a chemical change?
A
grinding
B
melting
C
tarnishing
D
mixing
4) Which of the following is a physical change?
A
frying an egg
B
baking a cake
C
mixing cookie dough
D
burning wood
5) Which of the following is NOT a physical change?
A
adding food coloring to water
B
nailing together boards of wood
C
breaking an egg
D
dying your hair
6) Which of the following is an example of a chemical change?
A
wood burning in a fireplace
B
putting on make-up
C
defrosting food in the microwave
D
ice melting in a glass
7) Which of the following is NOT a chemical change?
A
silver tarnishing in open air
B
antacid that neutralizes stomach acid
C
salt being mixed with water
D
bicycle rusting
8) Scientists study the characteristics of substances to better understand the natural world. Which of the following is not a chemical or physical characteristic of a substance?
A
color
B
density
C
cost
D
odor
9) Which of the following is evidence of a chemical change?
A
heat forming
B
all of the above
C
color change
D
bubbles
10) You blow dry your wet hair. What type of change?
A
-
B
Physical
C
-
D
Chemical
11) You forgot to dry the bread knife when you washed it and reddish brown spots appeared on it. (Rust)
A
Physical
B
-
C
-
D
Chemical
12) True or False. When ice cream melts, a chemical change occurs.
A
True
B
-
C
False
D
-
13) In a fireworks show, the fireworks explode giving off heat and light. What type of change?
A
physical
B
-
C
chemical
D
no change
14) Chewing food to break it down into smaller particles represents a _________ change, but the changing of starch into sugars by enzymes in the digestive system represents a ___________change.
A
physical, physical
B
physical, chemical
C
chemical, physical
D
chemical, chemical
15) A straight piece of wire is coiled to form a spring. What type of change?
A
physical
B
chemical
C
no change
D
-
*select an answer for all questions
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