Science EOY

About how much of the Earth's surface is covered by oceans?

• 65%

• 70%

• 75%

• 80%

How do plants slow soil erosion caused by heavy rains?

• Plants decrease moisture evaporation from the soil

• Plants take in water from the wet soil

• Plant leaves release water from the soil into the air

• Plant roots hold the soil particles together

What is the breakdown of the Earth's Crust into sediment (rock, sand, and soil), called?

• erosion

• deposition

• weathering

• all of the above

Mount Rushmore is in South Dakota. This statue was carved more than 69 years ago. The faces on this granite statue are slowly wearing away. Which natural process causes this wearing away?

• Earthquakes

• Blowing wind and rain

• Water from floods

• Lava flowing from volcanoes

Choose all the ways that can help slow erosion.

• Trees

• Humans

• Rain

• Earthworms

• Plants

Some processes that shape the Earth's surface are slow. Other processes are rapid. Which statement describes a rapid change?

• Glaciers melt and form rivers

• Wind weathers rock into sand

• Earthquakes move land and rocks

• Rivers carry debris and build deltas

What happens when weathering and erosion work together?

• new mountains are created

• the climate or temperature changes over night

• they change the Earth's surface

• all of the above

There is a relationship between landforms and wind. Given this relationship, which landform is the result of deposition?

• a canyon

• a desert

• a forest

• a mountain

Deposition from ice can cause slow changes to the Earth's surface. Identify which is an example of deposition from ice.

• ice breaks apart rocks

• water carries away pieces of floating ice

• wind carries away pieces of rocka nd ice

• glaciers drop rocks and sediment as they melt

Imagine ice splitting a rock. The ice is contributing to slow changes to the Earth's surface from

• erosioin

• polishing

• depositing

• weathering