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Physical And Chemical Changes
Test Description: Identifying Physical and Chemical Changes
Instructions: Answer all questions to get your test result.
1) Which of the following is an example of a physical change?
A
mixing baking soda and vinegar together, and this causes bubbles to form
B
baking a bierthday cake
C
a glass cup falls from the counter and shatters on the ground
D
lighting a piece of paper on fire and the paper burns
2) A physical blend of 2 or more components is called a ____.
A
physical property
B
type of element
C
chemical mixture
D
mixture
3) Lemonade is what type of mixture?
A
homogeneous
B
heterogeneous
4) A mixture in which the composition is NOT uniform throughout is called a _____ mixture.
A
heterogeneous
B
homogeneous
5) Oil and water are each homogeneous mixtures. What happens to them when they are mixed?
A
they form a hetergeneous mixture
B
they form a pure substance
C
they form a phase
6) What type of mixture is chichen soup?
A
heterogeneous
B
homogenous
7) What type of substance is milk?
A
compound
B
element
C
heterogeneous mixture
D
homogeneous mixture
8) Kool Aid is classified as:
A
compound
B
homogeneous
C
heterogeneous
D
element
9) Combination of two or more substances that are not chemically combined.
A
mixture
B
solvent
C
solute
D
solution
10) What is the term for combining 2 or more DIFFERENT atoms together?
A
elements
B
molecules
C
compound
D
atoms
11) Which of the following is an example of a chemical change?
A
your dog ripping up your homework
B
taking a glass of water and freezing it by placing it in the freezer
C
a plant collecting sunlight and turning it into food
D
filling up a balloon with hot air
12) Which change can be easily reversed?
A
physical change
B
chemical change
C
both a physical and chemical change
D
none of the above
13) When a new substance is formed with different properties than the original substance it is called a
A
boiling
B
freezing
C
physical change
D
chemical change
14) If the chemical properties of a substance remain unchanged and the appearance or shape of a substance changes it is called a
A
chemical change
B
none of the above
C
physical change
D
both a and b
15) Which is an example of a physical change?
A
paper buring
B
water boiling
C
metal rusting
D
silver tarnishing
16) What characteristic best describes what happens during a physical change?
A
mass is lost
B
form stays the same
C
composition stays the same
D
compsition changes
*select an answer for all questions
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