6th Grade Earth Science Exam

What term best describes the management of soil to prevent its destruction.

_______ is the name of the soil layer you find the most humus?

The following illustration shows which type of boundary?

The most important factors in determining the rate of weathering are _____.

A rock containing iron has been chemically weathered by oxygen and water in a process called...

Which number(s) best represents melting?

Which of the following statements about weathering is false?

What causes convection?

What was the name of the hypothesis that Alfred Wegener proposed?

The crust and the uppermost mantle make up the rigid outer layer of the Earth called the _____.

To prevent erosion on steep slopes, people can_____.

Which of the following were NOT used to support the continental drift theory?

A type of mechanical weathering in which sediment strikes rock and the surface gets worn away.

Plate tectonics is a theory that combines which two ideas? 

What do scientist use to map the ocean floor?

What type of weathering causes the mineral composition of rocks to change?

Mechanical weathering occurs at a greater rate in climates that are... 

The invention of sonar helped find the mid-ocean ridge, this led Harry Hess to develop a theory

Ice wedging causes mechanical weathering of rock by…

What was the reason no one believed Alfred Wegner’s hypothesis? 

What did scientist discover on the ocean floor to help provide evidence of seafloor spreading?

What occurs when an oceanic plate converges with a continental plate.

Which of water’s properties directly cause mechanical weathering?

Which number(s) represents compaction & cementation?

Which of the following is NOT a benefit of soil?

Which earth process results from this type of boundary?

9. What term describes the management of soil to prevent its destruction?

Which number(s) best represent cooling?

According to the graph, which type of volcanic rock will flow the easiest?

What kind of weathering causes the mineral composition of rocks to change?

What is the driving force for the movement of the lithospheric plates?

 earthworms, fungi and bacteria decompose the organic matter and add to the formation of…  

Harry Hess suggested an explanation as to how the continents were moving, the name is

_______ is the name of the soil layer that is solid rock.

_______ and ______ are examples of mass movement.

The decayed plant and animal material in soil is called ______.

According to the graph….

What is the main difference between chemical and physical weathering?

Which of the following are agents of Erosion?

According to the graph, which rock took the longest to cool and has the largest crystals? 

Layer of soil that contains fine soil particles & minerals from leeching, little organic matter

The following illustration shows which type of boundary?

If you drop a piece of chalk in vinegar, the chalk will eventually dissolve.  Example of____

Which earth process results from this type of boundary?

Wegner’s ideas about continental drift were controversial.  Why didn’t people believe him?

The movement by wind, water, glaciers or gravity of soil from one place to another is called...

According to the graph,what type of rocks are pumice, rhyolite and granite? 

Sediment is classified according to its particle______.

 6. The most important factors in determining the rate of weathering are…

If you increase the surface area of a rock, how will it affect the rate of weathering?

Which is NOT one of the clues Wegner used to support his hypothesis of continental drift.

Which number(s) represent heat & pressure

The dropping of sediments by any agent of erosion is called  _____.

Which of the following are types of mechanical weathering?

The following illustration shows which type of boundary?

 Living organisms in soil help to…

The hypothesis that Wegner suggested, claiming the continents were joined together in the past

Which of the following factors would increase the rate of weathering?

What is Pangaea?

5. A______  and ______ climate causes  chemical weathering to occur rapidly.  

A rock with iron goes crumbly and turns red-brown color.The process of __ has impacted it.

All of the following numbers represent weathering & erosion except?

________ deposited till over much of North America,which now gives us nutrient soil.

_______ is this the name of the soil layer that is made up of partially weathered rock.