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Unit 7
Sun, Earth, and Moon
| Question | Answer |
|---|---|
| A celestial body orbiting around a planet or star. | Satellite |
| The star at the center of the Solar System that supplies heat and light to Earth; its enormous gravity keep the Solar System in Orbit. | Sun (Sol) |
| A natural force that causes two objects to pull toward each other depending on their mass and the distance between them. | Gravity |
| Bowl-shaped indents or cavities on the surface of a planet, moon, or asteroid that are caused by a collision with another object, such as a meteorite. | Craters |
| The path one object takes as it revolves around another object. | Orbit |
| A natural satellite that orbits a planet | Moon |
| The whole mass of air surrounding the Earth and Sun. | Atmosphere |
| To move in a curved path around a center or axis | Revolve (revolution) |
| A 24-hour period, or time it takes Earth to make one complete rotation on its axis | Rotate (rotation) |
| A line, real or imaginary, around which something spins | Axis |
| Landforms, bodies of water, climate, and other features to describe the outward appearance of something. | Physical Features |