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Science Grade 8
Test Description: Science
Instructions: Answer all questions to get your test result.
1) Define term sublimation
A
Changing process
B
Neither
C
Process where solid state changes directly to gas state without going through a liquid state
D
Process where a solid state changes
2) Rocks make soil through the process called
A
Neither
B
Weathering
C
Earhring
D
whetering
3) Name 2 processes that occur in rocks caused by high and low tempreatures
A
Neither
B
all
C
expansion
D
contraction
4) What happens to the particles making up the rocks service when the sun is shining
A
All
B
Particles move faster and further apart
C
Kinetic energy increases
D
Temperature increases
5) What is a chemical compound
A
Neither
B
A substance made of different elements
C
A compound
D
A substance made up of more than one different element chemically joined to each other
6) Name the products formed in a chemical reaction
A
oxygen
B
Neither
C
mercury
D
both
7) Mixture
A
Impure substance
B
Pure subtance
C
Neither
D
Combination
8) Compound
A
Mixture
B
Elements
C
Pure substance
D
Neither
9) Compound
A
Neither
B
The different elements are chemically joined together
C
Bind together
D
Seperated
10) Mixture
A
The different elements are not chemically joined together
B
mixture
C
Bind together
D
neither
*select an answer for all questions
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