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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
mixture
B
chemical mixture
C
type of element
D
physical property
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 phase
C
they form a pure substance
6) What type of mixture is chichen soup?
A
homogenous
B
heterogeneous
7) What type of substance is milk?
A
heterogeneous mixture
B
homogeneous mixture
C
compound
D
element
8) Kool Aid is classified as:
A
element
B
homogeneous
C
compound
D
heterogeneous
9) Combination of two or more substances that are not chemically combined.
A
mixture
B
solute
C
solution
D
solvent
10) What is the term for combining 2 or more DIFFERENT atoms together?
A
atoms
B
elements
C
compound
D
molecules
11) Which of the following is an example of a chemical change?
A
a plant collecting sunlight and turning it into food
B
taking a glass of water and freezing it by placing it in the freezer
C
your dog ripping up your homework
D
filling up a balloon with hot air
12) Which change can be easily reversed?
A
physical change
B
both a physical and chemical change
C
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
freezing
B
chemical change
C
physical change
D
boiling
14) If the chemical properties of a substance remain unchanged and the appearance or shape of a substance changes it is called a
A
physical change
B
none of the above
C
chemical change
D
both a and b
15) Which is an example of a physical change?
A
paper buring
B
metal rusting
C
silver tarnishing
D
water boiling
16) What characteristic best describes what happens during a physical change?
A
compsition changes
B
mass is lost
C
composition stays the same
D
form stays the same
*select an answer for all questions
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