Fast land changes

What happens during a landslide?

• Magma moves up from the mantle 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 its banks

Why can floods be helpful?

• They form new islands in the ocean?

• 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 slip and push past each other

• Strong winds can push apart pieces of land

• Waves travel across the sea and break on land

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

• alive

• dead

• warm

• lava