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SE #1 Review 2
Test Description: 8th grade semester exam review
Instructions: Answer all questions to get your test result.
1) The pigment that makes plants green is
A
Algae
B
DNA
C
Plankton
D
Chlorophyll
2) Which of these is returned to the atmosphere when plants transpire?
A
Oxygen
B
Nitrogen
C
Water
D
Carbon
3) Which of these is inhaled by animals and used in respiration?
A
Nitrogen
B
Water
C
Oxygen
D
Carbon
4) Which statement about a sunflower stem is false?
A
Tissues in teh stem move water and minerals from the leaves down to the roots
B
Tissues in the stem move food made in the leaves down to the roots
C
The stem grows toward the sun
D
The stem supports the leaves so that they get the most sunlight
5) The condition in which a substance exists, including solid, liquid or gas is the ______ of a substance
A
Temperature
B
Phase
C
Volume
D
Mass
6) The process by which a liquid changes to a gas is called
A
Vaporization
B
Melting
C
Condensation
D
Sublimation
7) The process by which a vapor becomes a liquid is called
A
Deposition
B
Freezing
C
Condensation
D
Melting
8) The process by which a solid changes directly to a gas is called
A
Sublimation
B
Condensation
C
Freezing
D
Deposition
9) The process by which a solid substance changes to a liquid is called
A
Deposition
B
Condensation
C
Melting
D
Vaporization
10) The process by which a liquid changes to a solid is called
A
Deposition
B
Vaporization
C
Freezing
D
Condensation
11) A stream cuts through soft rock to create a canyon. Which type of change has occured?
A
Chain reaction
B
Nuclear reaction
C
Physical Change
D
Chemical change
12) Caves form when calcium carnbonate reacts with acidic water. Which type of change occurred?
A
Physical change
B
Chain reaction
C
Chemical change
D
Nuclear reaction
13) Wind causes rocks to change their shape. Which type of change has occurred?
A
Physical change
B
Nuclear reaction
C
Chemical change
D
Chain reaction
14) Mashing bananas results in
A
an exothermic reaction
B
a physical change
C
an endothermic reaction
D
a chemical change
15) Melting butter results in
A
an exothermic reaction
B
a chemical change
C
an endothermic reaction
D
a physical change
16) Baking bread results in
A
physical changes
B
a nuclear reaction
C
no changes
D
a chemical change
*select an answer for all questions
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