Science Review- Earths Resources

Which statement about minerals is true?

• A mineral can scratch any mineral with a higher hardness.

• A mineral always has the same color.

• A streak can be a different color than the mineral itself.

• Cleavage refers to the shape of a mineral's crystal.

The breaking down of Earth's surface into pieces

• weathering

• minerals

• erosion

• rock cycle

Resources that take millions of years to form

• reuseable

• renewable

• energy resource

• nonrenewable resource

The process of moving sediment to other places

• weathering

• mineral

• erosion

• movement

Which is a natural resource?

• steel

• water

• plastic

• electricity

The sides of the Grand Canyon show many different layers of rocks. Which statement describes how the Grand Canyon was formed?

• The canyon once had a waterfall.

• Big rainstorms washed rocks out of the canyon.

• A flowing river cut into the rocks to form the canyon.

• The canyon was formed from rocks that came from other places.

Resource that can be replaced in a human life

• renewable resource

• energy resource

• fossil fuels

• nonrenewable resource

Along the Florida Coast, many homeowners plant trees and place piles of rocks along beachfront property. What kind of damage do the trees and rocks help prevent?

• flooding

• erosion

• loss of sea life

• deposits of new soil

Anna finds two minerals in her collection that have the same color. Which one of the following should Anna NOT use to determine the types of minerals she has?

• observe each mineral's luster

• rub them on a ceramic plate

• scratch them with a paperclip

• weigh them

Which statement best describes an example of erosion?

• Wind blows against eh side of a rock and results in abrasion of the rock.

• Water freezes within a section of a rock and causes the rock to break apart.

• A glacier carries sediment to a new location and leaves it behind as the ice melts away.

• A tree root grows along the surface of the ground and causes a crack in the ground to widen.