History of the Earth

Front

What are the three main types of rocks?

Back

Igneous, sedimentary, and metamorphic.

Front

What is a geyser?

Back

A geyser is a hot spring that erupts with steam and hot water, not lava.

Front

What are fossils?

Back

Fossils are the preserved remains or imprints of animals and plants that lived long ago.

Front

What does a geologist study?

Back

A geologist studies rocks, the Earth, and its processes, not clouds.

Front

What causes a volcano to erupt?

Back

A volcano erupts when magma from inside the Earth rises to the surface.

Front

What is magma?

Back

Magma is molten rock found beneath the Earth's surface.

Front

What is the difference between igneous and sedimentary rocks?

Back

Igneous rocks form from cooled magma, while sedimentary rocks form from layers of sediment.

Front

What is erosion?

Back

Erosion is the process of rocks and soil being worn away by wind, water, or ice.

Front

What is a mineral?

Back

A mineral is a naturally occurring substance that is solid and has a definite chemical composition.

Front

What is the Earth's crust?

Back

The Earth's crust is the outermost layer of the Earth, where we live.