Swift Earth Moon
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| astronomy | the study of the moon, stars, and other objects in space | ||||
| axis | the imaginary line that passes through Earth’s center and the North and South Poles | ||||
| rotation | the spinning of Earth on its axis | ||||
| revolution | the movement of one object around another | ||||
| orbit | a path, such as the one the Earth follows as it goes around the sun or the Moon as it goes around the Earth | ||||
| calendar | a system of organizing time | ||||
| solstice | the day of the year when the sun is farthest north or farthest south. | ||||
| equinox | the day of the year when the sun is directly over the equator | ||||
| gravity | the force that attracts all objects towards each other | ||||
| inertia | the tendency of an object to resist change in motion | ||||
| phases | the different shapes of the moon you see from Earth | ||||
| eclipse | when an object in space comes between the sun and a third object and casts a shadow on that object | ||||
| solar eclipse | when the moon passes between the Earth and the Sun, casting a shadow on the Earth | ||||
| lunar eclipse | when the Earth passes between the sun and the moon, casting a shadow on the Moon | ||||
| tide | the rise and fall of the ocean due to the pull of gravity from the moon and sun | ||||
| spring tide | the tide that occurs during a full or new moon phase | ||||
| neap tide | the tide that occurs during a first or third quarter moon phase | ||||
| maria | the dark parts of the moons surface | ||||
| craters | the round pits on the moons surface |
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Created by:
dswift
on 2009-05-22