| A | B |
|---|
| equator | imaginary line that circles Earth halfway between the two poles |
| seasons | spring, summer, fall, winter |
| solar eclipse | blocking of light from the Sun when the Moon moves between it and Earth |
| lunar eclipse | the darkening of the Moon when it moves into Earth's shadow |
| rotation | the spinning motion around the axis |
| axis | the imaginary line on which an object rotates |
| revolve | to move in a circle or orbit |
| orbit | the path a planet, moon, or other object takes around another |
| planet | a large body that orbits a start and does not produce light of its own |
| solar system | the sun and all the planets and other objects that orbit it |
| phase | any stage in the series of changes in the apparent shape of the Moon |
| constellations | a group of stars that form a pattern that looks like a person, animal, or object |
