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stars and planets:
| Question | Answer |
|---|---|
| 1 Rotate: | To spin around an axis. |
| 2 Axis: | an imaginary line that runs through the center of Earth from the North Pole to the South Pole. |
| 3 revolve: | To travel in a closed path around the sun. |
| 4 Orbit | an object's path in space around another object. |
| 5 Moon | A small planet-like body that revolves around earth rather than the Sun. |
| 6 Phases | As the moon revolves around Earth, different amounts of its lit surface can be seen. |
| 7 solar system: | Is a group of objects in space that orbit a star in the center. plus the star itself. |
| 8 planet: | Is a large object that revolves around a star in a clear orbit. |
| 9 dwarf planet: | Also revolves around a star, but its path is not clear of other objects. |
| 10 comet: | A ball of rock, ice and frozen gases. |
| 11 star: | A huge ball of superheated gases. |
| 12 sun: | A star that is at the center of our solar system. |
| 13 constellation: | A group of stars that form an imaginary picture in the sky. |
| 14 galaxy: | A huge system of gases, dust, and stars. |
| 15 universe: | Everything that exist in space. |