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stars and planets
| Term | Definition |
|---|---|
| Rotate | to spin around an axis |
| Axis | an imaginary line that runs through to the center of the earth from the North pole to the South Pole |
| Revolve | To travel In a closed path arond the sun |
| Orbit | an objects path in space atoms another object |
| Moon | a small planet- like body that revolves around earth rather then the sun |
| Phases | as the moon revolves atoms earth, different amounts of it’s lit surface can be seen |
| Solar system | is a group of objects in space that orbit a star in the center, plus the star itself |
| Planet | is a large object that revolves around a star in a clear orbit |
| Dwarf planet | Also revolves around a star, but it’s path is not clear of other objects |
| Comet | a ball of rock, ice and frozen gases |
| Star | a huge ball superheated gases |
| Sun | a star that is at the center of our solar system |
| constellation | a group of stars that form an imaginary picture in the sky |
| Galaxy | A huge system of gases, dust, and stars |
| Universe | everything that exists in space |