Planets

Front

What are the outer planets?

Back

The outer planets are Jupiter, Saturn, Uranus, and Neptune. They are located beyond the asteroid belt.

Front

What is the asteroid belt?

Back

The asteroid belt is a region in space located between the orbits of Mars and Jupiter, filled with numerous small rocky bodies.

Front

What force keeps the planets in orbit around the sun?

Back

Gravity is the force that keeps the planets in orbit around the sun.

Front

What is a dwarf planet?

Back

A dwarf planet is a celestial body that orbits the sun and is similar to a planet but does not clear its orbit of other debris. Pluto is an example.

Front

What are the four inner planets?

Back

The four inner planets are Mercury, Venus, Earth, and Mars. They are rocky and located closer to the sun.

Front

Which planet is known for having oceans of liquid water?

Back

Earth is the only planet in the solar system known to have oceans of liquid water.

Front

What is the largest planet in our solar system?

Back

Jupiter is the largest planet in our solar system.

Front

What is the smallest planet in our solar system?

Back

Mercury is the smallest planet in our solar system.

Front

What is the main component of the sun?

Back

The sun is primarily composed of hydrogen and helium.

Front

What is a planet?

Back

A planet is a celestial body that orbits a star, is spherical in shape, and has cleared its orbit of other debris.