a natural object that revolves around a planet.

the four closest planets to the sun

Inner planets have rocky surfaces.

What are the four inner planets?

Which planet would have a shorter year?

a spacecraft that gathers data without a crew

What planet is closest to the sun?

Mercury is covered in

What was the first space craft to land on Mars?

Mercury has almost no atmosphere.

Venus is the third planet from the sun.

Venus is covered in clouds that are hot and toxic.

Venus rotates in the same direction as Earth.

Earth has two moons.

Earth is the third planet from the Sun.

Which is the only planet known to support life?

_____________ is the largest and most rocky planet in our solar system.

A __________ is an object that orbits another object in space.

The moon is Earth's natural satellite.

Earth rotates every 24 hours causing day and night.

It takes 27 days for the moon to revolve around Earth.

Mars is covered in iron oxide.

Mars is known as the blue planet.

Mars does not have enough oxygen to support plants and animals.

Mars has seasons.

What do all the inner planets have in common?

Click all the inner planets.

There are four outer planets.

The outer planets are known as the gas giants.

The outer planets have _____ inner layers and _____cores.

Jupiter has a continuous storm known as the

The fifth planet from the sun

Which two outer planets are made of hydrogen and helium?

Jupiter is much larger and rotates much faster than Earth.

In 2009 they discovered a new ______ around Saturn.

What keeps the planets in orbit around the sun?

Uranus is tilted on its side.

Neptune has a longer revolution than

Saturn is the only planet that has rings that orbit it.

Earth has a longer day than Jupiter.

What are the 8 planets in order?