Name:     ID: 
 
Email: 

Rocks and Erosion Mid-Term

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

Which process changes a rock into sediment?
a.
erosion
c.
weathering
b.
deposition
d.
oxidation
 

 2. 

How do plants slowly break down a rock?
a.
by abrasion
c.
by ice wedging
b.
mostly by mechanical weathering
d.
by deposition
 

 3. 

What is the process when sediment is blown or washed away from its parent rock?
a.
weathering
c.
deposition
b.
erosion
d.
bedrock
 

 4. 

Which of the following is caused by the freezing and melting of water?
a.
abrasion
c.
ice wedging
b.
oxidation
d.
gravity
 

 5. 

Glaciers can cause
a.
weathering
c.
deposition
b.
erosion
d.
weathering, erosion, and deposition
 

 6. 

Rust is the oxidation of
a.
water.
c.
nitrogen.
b.
tin.
d.
iron.
 

 7. 

When sediment is dropped at the mouth of a river and creates a delta...
a.
weathering
c.
deposition
b.
erosion
d.
abrasion
 

 8. 

Which is the A horizon in a soil profile?
a.
topsoil
c.
subsoil
b.
organic matter or humus
d.
parent material
 

 9. 

Which of the following is NOT true about a mineral?
a.
It is formed in nature.
c.
It has a crystalline structure.
b.
It is a living material.
d.
It is a solid.
 

 10. 

What is the softest mineral on the Mohs scale?
a.
diamond
c.
topaz
b.
gypsum
d.
talc
 

 11. 

Which mineral cannot be scratched by any other mineral?
a.
fluorite
c.
diamond
b.
talc
d.
gypsum
 

 12. 

How are rocks and minerals different?
a.
minerals make rocks
c.
minerals are formed from sediment
b.
rocks make minerals
d.
they are the same thing
 

 13. 

During the rock cycle, what forms when magma cools?
a.
igneous rock
c.
metamorphic rock
b.
sedimentary rock
d.
foliated rock
 

 14. 

What kind of rock can be changed into a sedimentary rock?
a.
igneous
c.
other sedimentary rocks
b.
metamorphic
d.
any kind of rock
 

 15. 

How are metamorphic rocks formed?
a.
melting
c.
rapid cooling
b.
weathering
d.
heat and pressure
 

 16. 

Which of these help make the sediment for sedimentary rocks?
a.
metamorphism
c.
compaction
b.
weathering
d.
cementation
 

 17. 

The organic matter in humus is made of ____.
a.
dead insects
c.
roots and stems
b.
leaves
d.
all of the above
 

 18. 

When Joe saw the Rocky Mountains for the first time, he said, “These mountains are much younger than the mountains in North Georgia.”  How could he know this?
a.
their sedimentary layers are still exposed
c.
the North Georgia Mountains are shorter and have rounded tops caused by long-term weathering
b.
they are taller so they are actually older
d.
the Rocky Mountains have tall rugged tops caused by long-term weathering     
 

 19. 

The color of the powder that a mineral leaves on a piece of white, unglazed porcelain is called the mineral's.
a.
luster
c.
streak
b.
scratch
d.
hardness
 

 20. 



Trace fossils are
a.
fossils scientists use to determine the age of rocks around it
c.
fossilized footprints, tail drags, or other evidence of an organism
b.
silhouettes of the orignal organism
d.
fossils that are traced in rock
 



 
         Start Over