Rock Unit Lessons 1-3

This rock was formed by smaller pieces of rock that settled at the bottom of a lake millions of years ago. What type of rock is this?

• Sedimentary

• Igneous

• Metamorphic

The process when rocks break into smaller pieces due to exposure to natural elements is called...

• Deposition

• Erosion

• Weathering

The process by which sediments move from one place to another from wind or rain is called...

• Deposition

• Erosion

• Weathering

The process where material is added to land (or a landform), can be laid down by water, wind or glaciers.

• Deposition

• Erosion

• Weathering

What do we call the material that comes from rocks that have been broken down into smaller pieces?

• Texture

• Weathering

• Sediment

• Erosion

What are the remains of plants or animals preserved in petrified form or as impressions made in rock?

• Crystals

• Fossils

• Geodes

Because of extreme heat and pressure, the characteristics of rocks change the deeper underground they are.

• True

• False

The rock deep below the ocean bottom (basalt) is less dense than the rock deep below the continents (granite) because in molecules in basalt are more spread out.

• True

• False

Temperature increases and rocks are more compressed as

• we move up into the air.

• we move deeper underground.

• This never happens.

Bedrock can be found on or below the Earth's surface.

• True

• False