Front

What is continental drift?

Back

The theory that continents have moved over geological time and were once joined together.

Front

What evidence supports the theory of continental drift?

Back

Fossils of the same plant have been found on several continents.

Front

Which planet has more gravitational force, Mercury or Jupiter?

Back

Jupiter has more gravitational force than Mercury.

Front

What causes the movement of Earth's tectonic plates?

Back

The movement is primarily caused by convection currents in the Earth's mantle.

Front

What is rotation?

Back

The process of spinning or turning on an axis.

Front

What does gravity do?

Back

Gravity keeps the planets in orbit around the sun and the moon in orbit around the Earth.

Front

What is the difference between rotation and revolution?

Back

Rotation is spinning on an axis, while revolution is moving around another object.

Front

What are tectonic plates?

Back

Large sections of the Earth's crust that move and interact with each other.

Front

What is subduction?

Back

The process where one tectonic plate moves under another and sinks into the mantle.

Front

What is a fossil?

Back

The preserved remains or traces of ancient organisms.