Internal Forces and External Forces

The earth´s crust is made up of 17 slabs called?

• Volcanoes

• Core

• Tectonic Plates

• Magma

What substance makes up most of the earth´s interior and bursts through volcanoes when they erupt?

• Lava

• Magma

• Earthquakes

• Water

This image best demonstrates what?

• Continental Drift

• Continental Love

• Volcanic Eruptions

• The Earth´s Core

What happens to oceanic water when it comes in contact with lava?

• The water gets a little bit warmer

• Nothing important

• New land and life are created instantly

• The water reaches scalding temperatures

What is most dangerous for humans who are somewhat close to an ocean or river that comes in contact with lava?

• Tidal Waves

• Explosions

• Toxic smoke carried by wind

• Fish that turn into dragons

True or False, most earthquakes got unnoticed

• True

• False

Scientists measure the size of an earthquake using the .......... scale

75% of the earth´s active volcanoes occur on the Rim of the ......... Ocean

Rain can erode mountains. What can rivers create? 

• Cliffs and Beaches

• Valleys and Ravines

• Oceans and Cliffs

• Valleys and Deserts

The most common external forces on the earth are.....

• Wind and earthquakes

• volcanoes and earthquakes

• Water and Volcanoes

• Wind and Water