Thin layer that has two types called oceanic and continental.

Thickest layer of the Earth that is mostly solid, but over long periods of time moves by convection.

What is created by the movement of the two layers of Earth's core?

Geologists use these waves, created by earthquakes, to study the layers within the Earth.

A tectonic boundary involving two plates moving towards each other.

Which of the following is evidence of a transform boundary?

When an oceanic plate collides with a continental plate, the _________ plate subducts because it is more dense.

A tectonic boundary involving two plates moving away from each other.

Which two features can form at a convergent boundary?

What is the name of the transform fault that runs through California? (it is also the name of a blockbuster movie starring Dwayne "The Rock" Johnson)

A tectonic boundary involving two plates moving side by side past each other.

Which are the three forces that work together to help move tectonic plates?

How are two plates moving at a convergent boundary?

How are two plates moving at a transform boundary?

How are two plates moving at a divergent boundary?

What materials have helped us determine the age of the Earth? (select all that apply)

Why is it difficult to find rocks on Earth that are 4.6 billion years old? (Select all that apply)

What are the compositional layers of the Earth, from most to least dense?

What do secondary waves tell us about Earth's interior?

Based on the speed of Secondary waves, at what depth does the outer core begin?

Where did water on Earth come from?

What was the first life on Earth?

What gas become present in Earth's atmosphere only after life appeared?

In what two ways does seafloor change as you move away from the mid-ocean ridge?

How are two plates moving at a divergent boundary?

What submarine feature is evidence of a divergent boundary?

Convection currents are one of three forces that help drive plate tectonics. Where do these currents occur?

Two convection currents work together to help drive plate tectonics. Which image shows the correct movement for both currents?

Where does slab-pull occur?

Where does Ridge-Push occur?

What is the greenhouse effect?

____________ is the breakdown of big rocks into smaller rocks.

_____________ is the movement of sediment away from the source.

_____________ is the placement of rock after transport away from the source.

This type of weathering is caused by physical interactions between rocks and other materials.

This type of weathering occurs due to chemical reactions between water and rocks.

The repeated freezing and thawing of water within the cracks of a rock is an example of:

When the roots of a plant grow within the rock, they can force the rock apart and eventually break it, this is an example of:

__________ describes any chemical reaction involving water and other substances.

Which river will move more sediment, a larger river moving at 15 mph, or a smaller river moving at 35 mph?

This term describes the chemical reaction that iron undergoes in the presence of oxygen.

Which type of weathering is described: The wedging of tree roots along natural joints in a piece of granite

Which type of weathering is described: Acids secreted by plant roots which break up rocks

Which type of weathering is described: Tree roots cracking the concrete foundation of a house