1/18 Weathering and Erosion

1. Which of the following would probably cause the most damage to an abandoned building found in a jungle?

• a. Wind and water

• b. Solar heat and acid rain

• c. Storm

• d. Plant growth

What happens when glaciers slowly move down a mountain?

• the glaciers melt and refreeze

• nothing happeneb.

• the glaciers melt and form giant lakes

• the glaciers cause erosion by taking sediment and moving it somewhere else

In the spring, rocks often fall onto mountain roads. Why?

• Ice freezes in the rock at night, cracking them.

• The snow is no longer holding them.

• The days are longer with more light.

• The rocks have grown during winter.

Rodney went to his favorite river to fish on vacation one summer. When he got there, it had all changed. Why?

• Wind can blow rocks into rivers.

• Erosion by rivers can change their course.

• He must have forgotten where it was.

• Ice in the winter can cause fish to

  die.

Sandy beaches form when...

• people dump sand in an area near a body of water

• whales wash ashore

• it rains

• water waves deposit sand and other materials on the shore

The natural chemical or physical processes that breaks down rock on Earth's surface.

• weathering
• erosion
• deposition
• jackhammering

How does freezing water cause the weathering of rocks?  The freezing water—

• keeps the rocks in place
• makes the rocks last longer
• expands cracks and breaks rocks
• causes rocks to fall in landslides

Flood water pounding against a canyon wall and wearing it down

• Weathering
• Erosion
• Deposition

Rain washing away soil from a hillside

• Weathering
• Erosion
• Deposition

Waves dropping sand on the beach

• Weathering 
• Erosion
• Deposition