| Term | Definition |
|---|---|
| asteroid | metallic, rocky irregularly shaped bodies without atmosphere that orbit the sun. |
| dwarf planet | A celestial body that is round and orbits the sun but does not clear the path of its atmosphere. |
| planet | A body that is round and orbits the sun. It clears the path of its orbit. |
| composition of planets | The elements that make up planets such as rock, minerals, and gases. |
| atmosphere of planets | The mass of air and gases that surround a planet. |
| solar system | The sun and the planets, dwarf planets, moons, asteroids, and comets that revolve around it. |
| What separates the inner and outer planets | The asteroid belt |
| List the outer planets | Jupiter, Saturn, Uranus, and Neptune. |
| List the inner planets | Mercury, Venus, Earth, and Mars |
| What are 2 main reasons for a planet's temperature? | Its atmosphere and how close it is to the sun. |
