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Physical And Chemical Changes Review
Test Description: Physical and chemical changes
Instructions: Answer all questions to get your test result.
1) Which of these actions to substances can be reversed?
A
Burning
B
Baking
C
Melting
D
Rusting
2) A student carries out an investigation and records his steps and observations in the table. 1. Rinse the apple with water.The apple looks cleaner.2. Rub the peel of the apple with sandpaper. The texture of the appl
A
Step 4
B
Step 3
C
Step 2`
D
Step 1
3) A chef examines and tastes several ingredients. Then she chops up the ingredients and combines them to make a salad. Which statement BEST describes the chef's actions?
A
She changes a state of matter.
B
She makes a new substance.
C
She makes a mixture.
D
She makes a solution.
4) A teacher mixes sugar and water in a class demonstration. The sugar dissolves in the water.How can the teacher separate the substances in this solution?
A
by causing the water to evaporate
B
by using a magnet to attract the sugar
C
by causing the sugar to melt
D
by causing the water to freeze
5) Which observation about a substance is NOT evidence that a chemical change occurred?
A
the formation of bubbles
B
a change in state
C
the formation of a new solid
D
a change in odor
6) Which of these actions will cause a chemical change?
A
mixing two different states of the same substance
B
burning a substance
C
evaporating a substance
D
evaporating a substance
7) During which change does water particles move faster and farther apart?
A
freezing
B
evaporation
C
melting
D
condensation
8) Folding a piece of paper is an example of a physical change.
A
sdg
B
sdg
C
False
D
True
9) Fireworks are examples of physical changes.
A
True
B
False
10) An example of a chemical change is when a cut apple sits out on the counter and turns brown.
A
False
B
True
11) A rusty nail is an example of a chemical change.
A
True
B
False
12) A burning candle is an example of both a chemical and physical change. The wick burning is chemical and the wax melting is physical.
A
False
B
True
13) Coloring a piece of paper yellow is an example of a chemical change.
A
True
B
False
*select an answer for all questions
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