Front

What is gravity?

Back

A pulling force that depends on mass and distance.

Front

What is the Kuiper Belt?

Back

A region of space beyond Neptune filled with icy bodies.

Front

What is an orbit?

Back

An elliptical path a celestial body follows.

Front

Why are terrestrial planets located close to the Sun in our solar system?

Back

Being close to the Sun made them much warmer.

Front

What shape is an ellipse?

Back

An oval shape with two foci.

Front

What are terrestrial planets?

Back

Planets that are rocky and have solid surfaces, like Earth and Mars.

Front

What are gas giants?

Back

Large planets that are mostly made of gases, like Jupiter and Saturn.

Front

What is the solar system?

Back

A collection of the Sun and all the celestial bodies that are bound to it by gravity.

Front

What is a comet?

Back

A small celestial body made of ice and dust that develops a tail when close to the Sun.

Front

What is a black hole?

Back

A region in space where the gravitational pull is so strong that nothing, not even light, can escape.