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Physical And Chemical Changes
Test Description: Pay attention
Instructions: Answer all questions to get your test result.
1) Which is an example of a chemical change?
A
Stirring a glass of milk
B
Milk cooling in a refrigerator
C
Pouring milk into a glass
D
Milk turning sour
2) Which of these is an example of a physical change?
A
Baking a cake
B
Melting ice
C
Rusting metal
D
Baking cookies
3) Which action describes a physical change?
A
Fried
B
Boiled
C
Cracked
D
Scrambled
4) Which of the following is a chemical change?
A
a balloon losing air
B
a piece of wood burning
C
a glass breaking
D
a pot of water boiling
5) Which of these describes a chemical change in matter?
A
copper shines
B
paper burns
C
wax melts
D
rocks break
6) Which describes a chemical property of a substance?
A
able to float in water
B
able to break easily
C
able to melt at high temperatures
D
able to react with oxygen
7) Sharpening a pencil and tearing paper are examples of physical changes. Which statement describes why these are physical changes?
A
There is a change in both the appearance of the objects and materials from which they were made
B
There is a change in the appearance of the objects.
C
There is a change in how the objects are used.
D
There is a change in the materials from which the objects are made.
8) Which shows a chemical change?
A
ice melting into a puddle of water
B
matching being burned
C
balloon being inflated
D
paper being torn
9) In which case does a physical change occur?
A
a cake bakes in an oven
B
bread burns in a toaster
C
ice melts into water
D
two chemicals form a new substance
10) Which is an example of a physical change?
A
heating a brown substance until it changes into a gray powder
B
allowing an iron chain to remain in salt water until it rusts
C
breaking an object into smaller pieces by using a hammer
D
reacting vinegar and baking soda to make white foam and a gas
11) Which activity below does not represent a chemical change?
A
burning logs
B
melting ice cubes
C
ripening pears
D
decaying leaves
12) Which activity below does represent a chemical change?
A
ice melting
B
food dye in water
C
tearing paper
D
burning logs
*select an answer for all questions
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