Planets & Solar System

The inner planets are separated from the outer planets by:

The sun is the largest object in the solar system.

Saturn's rings are mostly made of:

A star is a sphere made of very hot gas called:

This planet is sometime tilted, so that one pole gets 42 years of direct sunlight.

The only planet that spins in the opposite direction to the other planets is:

Earth orbits around the sun once every:

A moon is also known as a:

The inner planets are typically made of:

The closest planet to the sun is:

Earth is the only known planet to:

Some asteroids are very large and some can be as small as a grain of sand.

Which are larger, the inner or the outer planets?

Saturn's surface is made of mostly:

Which of the following is not a component of comets?

Which planet experiences the largest dust storms?

The Earth could fit inside the sun ________ times.

The solar system includes:

The atmosphere of Venus is 98% ______.

This planet has the most number of known natural satellites in our solar system.

Which of the following is NOT one of the inner planets?

Mars has _____ natural satellites.

Temperature on Neptune can be as low as _______ degrees Celsius.

Which of the following is NOT one of the outer planets?

Ammonia and methane make this planet look blue and green.

Mercury gets very __________ at night because there is no atmosphere.

There is a giant whirlpool of storms on this planet, known as the Great Red Spot.

This planet orbits the sun approximately once every 165 years.

The largest planet in the solar system is:

Asteroids are left over from:

The largest known asteroid is called: