Geology

Erosion is...

• materials begin moved across the Earth's surface by water and wind
• materials deposited into a new location as sediment
• rocks and other materials being broken down both physically and chemically

What is made up of nickel and iron in the Earth?

• core
• crust
• mantle
• atmosphere

What are three types of rocks?

• sedimentary, igneous, metamorphic
• mantle, igneous, sedimentary
• crust, core, mantle

When lava cools what does it form?

• igneous rock
• fossils
• sedimentary rock
• metamorphic rock

How are sedimentary rocks formed?

• cooling
• erosion
• heat and pressure
• compacting and cementing

Which layer would be the oldest?

• siltstone
• sandstone
• conglomerate
• mudstone

The constant, slow movement of plates on the Earth's surface is probably caused by...

• earthquakes
• heat
• volcanoes
• rocks

Hot gases and lava flow from...

• faults
• volcanoes
• glaciers
• earthquakes

Which one of the following will improve soil quality?

• using too much fertilizer
• planting the same crops each year
• cutting everything down
• planting flowers and grass

The removal of soil and rock from the Earth's surface is called...

• deforestation
• sedimentation
• weathering
• erosion