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6th Grade Space
6th graders Space Unit
| Term | Definition |
|---|---|
| Rotation | A spin in place. Earth rotates once every 24 hours, causing day and night. |
| Axis | An imaginary line through the North and South poles that Earth rotates around. |
| Orbit | The path one object follows as it goes around another in space. |
| Revolution | One full trip around another object; Earth's revolution around the sun takes one year. |
| Horizon | The line where Earth and the sky appear to meet. |
| Daytime | When your part of Earth faces the sun and gets direct light. |
| Nighttime | When your part of Earth faces away from the sun and is in darkness. |
| Sunrise | When the sun first appears above the eatern horizon. |
| Sunset | When the sun disappears below the western horizon. |
| Constellation | A group of stars that form a pattern in the sky, like Orion. |
| Apparent Motion | How objects seem to move because Earth is rotating, even though they are far away. |
| Earth's Rotation | Earth's rotation on its axis once every 24 hours, making the sun, moon, and appear to move east to west. |
| Earth's Orbit | Earth's yearly path around the sun. |
| Moon's Orbit | The moon's path around Earth, completed in about 27.3 days. |