Fast Land Changes

What happens during a landslide?

• Magma moves up from the mantel and erupts.

• Large pieces of land break off and slide down.

• The ground freezes and melts when it's warmer.

• Water in streams and rivers overflows the banks.

Why can floods be helpful?

• They form new islands in the oceans.

• They make Earth's mantle stronger.

• They damage many roads and homes.

• They can bring rich soil to an area.

What is melted rock from the mantle called after it has erupted from a volcano and reached the surface?

• plate

• magma

• lava

• crust

What can cause earthquakes?

• Heavy rains make rivers overflow their banks

• Tectonic plates push and slip past each other.

• Strong winds can push apart pieces of land.

• Waves travel across the seas and break on land.

Many volcanoes are EXTINCT and will never erupt. Which word is similar to EXTINCT?

• alive

• dead

• warm

• lava