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SMP Inv. 3
Sun, Moon, and Planets - Investigation 3
| Term | Definition |
|---|---|
| Asteroid | a small, solid object that orbits the Sun |
| Asteroid Belt | a band of orbiting rubble that separates the gas giant planets from the terrestrial planets |
| Comet | a mass of ice, rock, and gas orbiting the Sun |
| Dwarf Planet | a round object that orbits the Sun but does not orbit a planet |
| Force | a push or pull that can change the speed and direction of a moving object |
| Gas Giant Planet | one of the four planets that are made of gas: Jupiter, Saturn, Uranus, and Neptune |
| Gravity | the force of attraction between two objects |
| Kuiper Belt | a huge region beyond the gas giant planets, made up of different-size icy chunks of matter |
| Planet | a large, round object orbiting a star |
| Solar System | the Sun and the planets and other objects that orbit the Sun |
| Terrestrial Planet | one of the four small, rocky planets closest to the Sun: Mercury, Venus, Earth, and Mars |