Dynamic Earth: Unit 1

___________ is the breaking down of rock materials by physical and chemical processes

• erosion

• weathering

• deposition

Small fragments of rock or soil are called __________.

• silt

• pebbles

• sediment

What type of weathering is shown in this image?

What process or processes are taking place in this image?

• deposition

• erosion

• physical weathering

• chemical weathering

This rock has turned red in places due to iron in the rock reacting with oxygen. What is this an example of?

• physical weathering

• chemical weathering

• erosion

What process formed the sand dune shown in this image?

• erosion

• deposition

• chemical weathering

• plate tectonics

A ___________ is an naturally occurring, usually inorganic solid with a definite chemical composition and orderly internal structure.

• igneous rock

• sedimentary rock

• metamorphic rock

• mineral

The series of processes that changes rocks from one form to another is called the ____________.

All rocks come from other rocks.

• True

• False

Which type of rock is formed when magma or lava cools?

• sedimentary

• igneous

• metamorphic