Term
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Definition
| The study of the moon, stars, and other objects in space |
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Term
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Definition
| Imaginary line that passes through earths center |
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Term
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Definition
| The spinning on earths axis |
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Term
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Definition
| Movement of one object around an other |
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Term
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Definition
| Earth that follows a path is called |
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Term
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Definition
| When the sun is farthest north or south of the equator |
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Term
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Definition
| What is it called whenthe sun is directly overhead at the equator |
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Definition
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Term
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Definition
| The force that pulls the moon to the earth is called |
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Term
| Law of universal gravitation |
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Definition
| Every object in the universe attracts every other object |
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Term
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Definition
| Amount of matter in an object |
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Term
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Definition
| The force of gravity on an object |
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Term
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Definition
| Tendency of an object to resist a change in motion |
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Term
| Newton's first law of motion |
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Definition
| an object st rest will stay at rest and an object in motion will stay in motion |
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Term
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Definition
| The different shapes of the moon you see from earth |
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Term
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Definition
| When an object in space comes between the sun and the third object |
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Term
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Definition
| Occurs when a new moon blocks your view of the sun |
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Term
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Definition
| The very darkest part of the moons shadow |
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Term
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Definition
| Largest part of the shadow |
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Term
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Definition
| Occurs at a full moon when Earth is directly between the moon and the sun |
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Term
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Definition
| The rise and fall of ocen water |
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Term
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Definition
| Greastest distance between high and low tides |
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Term
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Definition
| Least difference between high and low tides |
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Term
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Definition
| A device used to observe distance objects by making them appear closer |
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Term
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Definition
| The moons dark flat areas are called |
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Term
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Definition
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Term
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Definition
| Chunks of rock or dust from space |
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Term
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Definition
| Device that expels gas in one direction to move in the opposite direction |
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Term
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Definition
| The reaction force that propels a rocket |
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Term
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Definition
| Speed in a given direction |
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Term
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Definition
| Veolicity a rocket must achieve to establish an orbit around earth |
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Term
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Definition
| A veolicity a rocket must reach to fly beyond a planets gravitational pull |
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Term
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Definition
| An object that revolves around another object in space |
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Term
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Definition
| A space craft that can carry a crew into space |
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Term
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Definition
| A large artifical sattelite which people can live in |
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Term
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Definition
| Spacecraft that carrues scientific instruments |
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Term
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Definition
| A instrument that moves around on a surface |
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