Explore Rock Types and Their Formation Processes

When sediments are pressed together tightly, this is called ____________.

• Compaction
• Cementation
• Weathering
• Erosion

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 processes:

Erosion

Deposition

Compaction

Cementation

Weathering

are all associated with the formation of what type of rock?

• igneous

• sedimentary

• metamorphic

The process by which igneous rocks are formed is due to energy from the...

• sun

• Earth's interior

Which type of rock results from melting and cooling of magma?

• Igneous
• Metamorphic
• Sedimentary
• Extrusive

Which type of rock forms from extreme heat and pressure?

• Igneous
• Sedimentary
• Organic
• Metamorphic

A metamorphic rock changes into an igneous rock by what two processes?

• Melting and cooling
• Extreme heat and pressure
• Compaction and cementation
• Weathering and erosion

Wind, water, and ice breaking down rock is called

• Erosion
• Deposition
• Compaction
• Weathering

This rock cooled on the outside of a volcano and contained air bubbles when it was forming. What type of rock is this?

• Sedimentary
• Igneous
• Metamorphic

This rock was formed by lots of fossils that settled on top of each other over time. What type of rock is this?

• Sedimentary
• Igneous
• Metamorphic