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27 Week Review #1
5.8C & 5.8D-Earth and Space
| Term | Definition |
|---|---|
| Sun | The center of the solar system. |
| Venus | 2nd planet in the solar system. |
| 1 day or 24 hours | The time it takes for the Earth to complete one full rotation. |
| 28 days | The time it takes for the Moon to complete one revolution around the Earth. |
| Earth | 3rd planet in the solar system. |
| Revolution | The path of an orbit around a larger object in space. |
| Mercury | Closest planet to the Sun and 1st planet in the solar system. |
| Mars | 4th planet in the solar system. |
| Seasons | Quarterly period changes in the year due to the Earth's tilting axis. |
| 1 year or 365 days | The time it takes for the Earth to complete one revolution. |
| Saturn | 6th planet in the solar system. |
| Rotation | An object spinning on its axis. |
| Uranus | 7th planet in the solar system. |
| Theory | An explanation of how or why something happens based on observations and data. |
| Jupiter | 5th planet in the solar system. |
| Hypothesis | A statement that can be tested by an investigation. |
| Neptune | 8th planet in the solar system. |
| Atmosphere | The layer of gas that surrounds a body in space. |
| Model | A representation of a system to show something complex in a simple form. |