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8th Grade Science TCAP Review 2
Test Description: TCAP Review part 2
Instructions: Answer all questions to get your test result.
1) Which machine uses magnetism to produce an electric current?
A
compass
B
electromagnet
C
balance
D
electric generator
2) Which gas makes up most of Earth's atmosphere?
A
carbon dioxide
B
methane
C
nitrogen
D
oxygen
3) An element appears in the far right column of the periodic table. What can you conclude about the element based on this information?
A
It is a metalloid.
B
It is a liquid and a metal.
C
It is anonmetal and a gas.
D
It is a solid.
4) Which is aevidence that a chemical change has occurred?
A
Water freezes to form ice.
B
A magnet is used to separate iron filings from sulfur.
C
Four liquids poured into a container separate into four distinct layers.
D
Two gases combine to form a liquid.
5) What happens to the molecules in a lump of butter as the butter melts?
A
The molecules spread farther apart and move slower.
B
The molecules spread farther apart and move slower.
C
The molecules spread farther apart and move faster.
D
The molecules pack together more closely and move faster.
6) Which of these is the smallest particle of matter?
A
atom
B
mixture
C
molecule
D
compound
7) Where are products located in chemical equations?
A
to the left of the addition sign
B
to the right of the arrow
C
to the right of the addition sign
D
to the left of the arrow
8) What tools should a student use to investigate how different temperatures affect the evaporation rates of water?
A
a stopwatch, a spring scale, and a thermometer
B
a graduated cylinder, a balance, and a thermometer
C
a microscope, a stopwatch, and a thermometer
D
a graduated cylinder, a stopwatch, and a thermometer
9) Which tool is the best choice to observe single-celled organisms in a sample of pond water?
A
telescope
B
microscope
C
beaker
D
spring scale
10) Which is a characteristic of almost all the matter on Earth?
A
It is made up of energy
B
It is made up of plasma.
C
It is made up of atoms.
D
It is made up of cells.
*select an answer for all questions
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