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1st Nine Weeks Earth Science
Test Description: Review 6th grade
Instructions: Answer all questions to get your test result.
1) A deep well or mine shaft goes through which layer or layers of Earth?
A
crust, mantle, and outer core
B
mantle only
C
crust only
D
crust and mantle
2) What is the Earth's core mainly composed of?
A
iron and nickel
B
coal and nickel
C
iron and steel
D
iron and coal
3) How do metamorphic rocks form?
A
magma cools
B
erosion
C
layers of sediment are deposited, compacted, and cemented together
D
heat and pressure change the parent rock into the new form
4) What kind of rock is formed when volcanic lava cools?
A
metamorphic
B
hot
C
igneous
D
sedimentary
5) How are extrusive rocks formed?
A
heat and pressure
B
lava cooling on the Earth's surface
C
sediment being deposited, compacted and cemented together
D
magma cooling below the Earth's surface
6) What evidence do scientists have that show the Earth is very old?
A
fossils
B
all of these
C
continental drift
D
radioactive decay in rocks
7) What do we call a boundary where 2 tectonic plates come together?
A
convergent
B
transform
C
subduction
D
divergent
8) What would a scientist need to study to get a measure of the ABSOLUTE age of an object?
A
the climate of the area where the object was found
B
layers of earth (law of superposition)
C
carbon dating of a sample
D
earthquake records
9) What type of rock is sandstone?
A
it isn't a rock, it's a mineral
B
igneous
C
sedimentary
D
metamorphic
10) How do geologists determine the classification of a rock?
A
They look for crystals.
B
They look at the color.
C
They find its density.
D
They look at how it formed.
*select an answer for all questions
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