Understanding Craters

What is a crater and how is an impact crater formed?

• A crater is a round depression formed by a meteorite impact.

• A crater is a valley formed by water flow.

• A crater is a flat surface formed by erosion.

• A crater is a mountain formed by volcanic activity.

Why are craters on the Moon more visible than those on Earth?

• The Moon has a thicker atmosphere.

• The Moon has no weather to erode craters.

• The Moon's surface is made of reflective material.

• The Moon is closer to the Sun.

What is the Meteor Crater in Arizona known for?

• Being the largest crater on Earth.

• Being formed by a volcanic eruption.

• Being a well-preserved impact crater.

• Being the deepest lake in the world.

How are volcanic craters formed?

• By the eruption of magma from the Earth.

• By erosion from wind and water.

• By meteorite impacts.

• By the movement of tectonic plates.

What causes hydrothermal explosions?

• The eruption of a volcano.

• The impact of a large meteorite.

• The release of pressure from heated water beneath the Earth's surface.

• The collision of tectonic plates.