Slow Changes to Earth

_____________ is to break Earth’s surface into pieces.

• deposition
• erosion
• glacier
• weathering

________________ is to move broken pieces to a new area.

• deposition
• erosion
• glacier
• weathering

__________________ is frozen water that moves slowly to change Earth’s surface.

• deposition
• erosion
• glacier
• weathering

______________ is the piling of sediment in a new area.

• deposition
• erosion
• glacier
• weathering

Where is one most likely to find rocks that have become smooth and rounded?

• At the bottom of the ocean
• Deep within Earth
• On top of a hilll
• In a fast moving river

Caves are large empty spaces below the surface of the earth. Which of the following processes forms caves over millions of years?

• Rivers carry mud and silt and then deposit them.
• Water flowing underground carries away minerals.
• Volcanic eruptions leave behind hollow areas.
• Ocean currents move sediments along the beach.

A farmer notices that soil on the farm has been decreasing over the past few months. What environmental factor is most likely related to the loss of soil?

• Recent heavy rains
• Steady increase in temperatures
• Abundant crop yields
• Decrease in temperatures

This rock formation formed over many millions of years.
What force most likely created it?

• A glacier pushing rocks ahead of it
• A river bringing rocks down a mountain
• Wind-blown sand carving large rocks
• A volcano blasting rocks great distances

Dunes are large piles of sand that shift slowly around in deserts and on beaches. What causes the dune to move from place to place?

• Rushing rivers
• Blowing winds
• Freezing water
• Weathering rock

Over many years the bottom of a lake gets higher and higher.
What could cause this slow change?

• The climate in the area gets warmer.
• Sediments are deposited in the lake.
• The Sun evaporates the water.
• A hurricane brings heavy rains.