4th-grade Earth Science Review

Front

What are rocks that have changed because of heat and pressure called?

Back

Metamorphic rock

Front

What does a streak test help to compare in minerals?

Back

The color of the line on the plate

Front

How are minerals and rocks related?

Back

Rocks are made up of one or more minerals.

Front

What happens to rocks in a fast-moving river over time?

Back

They get smaller.

Front

What percentage of Earth's surface is covered by water?

Back

70%.

Front

What is an igneous rock?

Back

A type of rock formed from cooled magma or lava.

Front

What is sedimentary rock?

Back

A type of rock formed from the accumulation of sediment.

Front

What is a mineral?

Back

A naturally occurring inorganic substance with a definite chemical composition.

Front

What is erosion?

Back

The process by which rocks and soil are worn away and transported by wind or water.

Front

What is the rock cycle?

Back

The continuous process of rock formation and transformation.