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5th Grade Unit 6
| Definition | Term |
|---|---|
| The air that surrounds the Earth; it is a mixture of gases | Atmosphere |
| The imaginary line that the Earth or other objects rotates about | Axis |
| The path that one object in space follows as it revolves around another object in space | Orbit |
| To go around another object. (The Earth takes 365 1/4 days or 1 year to complete one) | Revolution |
| To spin on an axis | Rotation |
| Caused by the revolution of the Earth around the Sun and the tilt of its axis | Seasons |
| These are longest in the early morning and late evening and shortest around noon. They will be on the opposite side from the Sun | Shadows |
| To slant | Tilt |
| The direction the Sun rises in | East |
| The direction the Sun sets in | West |
| The force that pulls objects towards the Earth or keeps objects in orbit around another object | Gravity |
| Caused by the rotation of the Earth on its axis every 24 hours | Day/Night Cycle |