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Science planet stars
chapter 2 vocabulary part one
| Question | Answer |
|---|---|
| to spin around an axis | rotate |
| an imaginary line that runs through the center of Earth from the North Pole to the South Pole | axis |
| to travel in a closed path | revolve |
| the closed path of one object in space around another object | orbit |
| a natural body that revolves around a planet | moon |
| one of the shapes the moon seems to have as it orbits earth | phase |
| growing | waxing |
| shrinking | waning |
| less than half of the moon is illuminated or shining | crescent |
| more than half of the moon is illuminated or shining | gibbous |