Geothermal energy comes from the heat within the earth. The word "geothermal" comes from the Greek words geo, meaning earth," and therm, meaning "heat." It is where volcanoes get their energy!

Comparing Earthquakes and Volcanoes Powerpoint

Energy that produces volcanoes and volcanic eruptions come from the heat within the Earth’s interior.

During the course of a volcanic eruption, energy gets changed from one form to another.

Heat energy in the magma changes to mechanical energy.Mechanical energy is energy of movement.

HEAT ENERGY MEACHANICAL ENERGY

Anything that moves has mechanical energy

Unfortunately people can’tdo anything to stop the powers of Volcanoes and Earthquakes

What effect does the energy released by volcanoes and earthquakes have when they occur near human populations?

Earthquakes are the result of what type of energy?

the mechanical slipping of a fault creates seismic waves

Seismic waves are waves of energy that travel through the Earth's layers.

Mechanical energy is changed to seismic wave energy

Seismic waves spread out from the Earthquake’s center in all directions and travel both on the Earth’s surface and the interior.

Seismic waves, like the waves in this pool, lose their energy the further from the source they came from.

Destruction from Earthquakes decreases the further away from the epicenter.

The energy in the Earth’s core is primarily in the form of heat.

As you rise to the mantle, some of the heat energy is converted into mechanical energy. The mechanical energy (movement) puts forces on the crust and causes volcanoes to erupt and Earthquakes to happen.

Volcanoes like EarthquakesGet heat energy from the magma from beneath the Earth’s crust