The Earth
Seafloor
Mountains and Volcanoes
Types of Rocks
Earthquakes
100

These giant pieces of rock help move and shape the Earth's surface.

What are tectonic plates?

100

The deepest part of the ocean is this trench, located to the south of Japan.

What is the Mariana Trench?

100

This is the tallest mountain in the world, measuring from the sea floor to the highest point.

What is Mount Everest?

100

This continuous process allows rocks to change over time.

What is the rock cycle?

100

The San Andreas fault line is located in this state, making it a common place for earthquakes to occur.

What is California?

200

This is the top layer of Earth's surface, which contains all of it's above-ground land.

What is the crust?

200

Trenches are formed when one of these slides under another.

What is a tectonic plate?

200

When magma arrives at the Earth's surface, it is called this instead.

What is lava?

200

If a rock wants to move from one place to another, it probably uses this process.

What is erosion?

200

Earthquakes often occur at places called this, which is another word for a crack in Earth's crust.

What are faults?

300

This man helped create the continental drift theory.

Who is Wegener?

300

These vents are caused by magma under the crust heating up the water surrounding it.

What are hydrothermal vents?

300

This national park in Wyoming and Montana hides a supervolcano, which also explains its tendency to have geysers.

What is Yellowstone?

300

Rocks are made up of tiny pieces called this.

What are sediments?

300

A Japanese word, this describes when an earthquake under an ocean causes a massive wave to head towards land.

What is a tsunami?

400

These two continents have sections where they fit together, like a jigsaw puzzle.

What are Africa and South America?

400

This is another name for an underwater volcano.

What is a seamount?

400

This type of volcano is not at risk of erupting anytime soon.

What is dormant/extinct?

400

This is the most common type of rock, formed from cooled magma.

What is igneous rock?

400

This point in Earth's surface is directly below the beginning of an earthquake's power.

What is an epicenter?

500

These two pieces make up the center of the Earth, and are extremely hot.

What are the inner and outer cores?

500

This is one of the largest mountain ridges underwater, responsible for pushing continents across the Atlantic Ocean apart.

What is the Mid-Atlantic Ridge?

500

When magma causes the rock above it to push up, it creates this type of mountain that doesn't have many mountain neighbors.

What is a dome mountain?

500

This process beats down rocks over time, turning it into tiny pieces that can then form sedimentary rocks.

What is weathering?

500

This scale measures the aftershock, or intensity, of an earthquake.

What is the Richter scale?

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