How Do Mountains, Volcanoes, and Earthquakes Happen?

What are tectonic plates?

• Clouds in the sky

• Pieces of Earth’s crust that move

• Mountains under the sea

• Parts of a volcano

What happens when two tectonic plates push together?

• An earthquake forms

• A river forms

• A mountain can form

• The plates melt

How do volcanoes usually form?

• A. Plates move apart

• B. One plate slides under another

• C. Plates freeze

• D. Clouds crash together

What comes out of a volcano when it erupts?

• Water

• Snow

• Lava and gas

• Wind

What causes earthquakes?

• Heavy trucks

• The Moon

• Plates sliding and getting stuck

• Rainstorms

What is subduction?

• Plates moving upward

• One plate sliding under another

• Plates stopping forever

• Earth shaking quickly

Which of these is caused by plates pulling apart or sliding?

• Mountains

• Volcanoes

• Earthquakes

• Glaciers

Where do most volcanoes and earthquakes happen?

• In the United States

• At plate boundaries

• In deserts

• Under trees