Unit:8 The Earth

cientists who study rocks are called....

• Researcher

• Geologist

• Earthologist

• Globologist

The surface of earth is covered by a layer of rock. This layer is called the Earth's.....

• cover

• outermost layer

• material

• crust

One of the examples intrusive igneous rock that cools slowly is

• granite

• Obsidian

• Basalt

• Pumice

When magma reaches the surface of the Earth it is called...

• Lava

• Igneous rock

• Larva

• Basalts

Name this igneous rock!

• basalt

• granite

• obsidian

• pumice

What is humus?

• organic material rich in nutrients

• subsoil

• parent material

• trees

What process breaks down bedrock to begin soil formation?

• leaching

• decomposition

• weathering

• humus

How do intrusive igneous rocks form?

• from lava that erupted onto Earth's surface

• from magma that hardened beneath Earth's surface

Rock made of layers of compressed sediments

• metamorphic rock

• sedimentary rock

• igneous rock

• school house rock

The process by which running water, wind, or ice carry away bits of broken-up rock

• weathering

• erosion

• sediment

• cememtation