A glacier picks up a large rock and moves it. What is this process called?

• erosion
• weathering
• gravity
• landslide

Which is a definition of weathering?

• moving materials from one place to another
• breaking down rock into smaller pieces
• picking up rocks
• pulling rocks downward

How does sand cause weathering?

• It carries rocks from place to place
• It pulls rock downward
• It gets into cracks and expands
• It scrapes away the surface of rock

Which is the result of gravity?

• Rocks move downhill
• Strong winds carry large rocks
• Cold weather freezes water in rocks
• Wind shapes rock into arches

Which correctly describes how weathering is different from erosion?

• Weathering moves rock, while erosion breaks down rock
• Weathering breaks down rock, while erosion moves rock
• Wind causes weathering but does not cause erosion
• Ice causes weathering but does not cause erosion

Which of these breaks rocks apart by making cracks larger?

• wind
• plant roots
• sand
• gravity

There is a relationship between landforms and moving water. Given this relationship, which of the following landforms is the result of weathering?

• canyon
• desert
• forest
• mountain

Water in a fast-moving river causes rocks to bump and scrape against one another. What will happen to these rocks over time?

• they will get larger
• they will get smaller
• they will get sharper
• they will get heavier

How is erosion different from weathering?

• erosion is slower than weathering
• erosion is faster than weathering
• erosion breaks rocks and weathering moves rocks
• erosion moves rocks and weathering breaks rocks

Which statement describes what will happen to the rock and plant over time?

• the rock will crush the plant
• the plant will be buried in the crack
• the plant will grow, and the crack will get bigger
• the rock will stop the plant from growing bigger