A ______________ can happen when a lot of rain falls quickly.
A flood can happen when a lot of rain falls quickly.
A _________________ happens when the rocks and soil slide from higher to lower ground.
A landslide happens when the rocks and soil slide from higher to lower ground.
Ice can ___________ large rocks into little pieces.
Ice can break large rocks into little pieces.
Strong winds ____________ sand and carry away soil.
Strong winds blow sand and carry away soil.
A ________________ is an opening in Earth's crust.
A volcano is an opening in Earth's crust.
Fast changes happen when Earth's _____________ moves.
Fast changes happen when Earth's crust moves.
What can cause landslides?
Rain or melting snow can cause landslides.
An ____________________ happens when Earth's crust shakes.
An earthquake happens when Earth's crust shakes.