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Astronomy and space1
| Question | Answer |
|---|---|
| Satellite | An object that orbits a planet |
| planet | An object that orbits a star, is large enough to become rounded by its own gravity and has cleared the area of its orbits |
| star | A ball of hot gas, primarily hydrogen and helium, that undergoes nuclear fusion |
| constellation | A pattern of grouping of stars that people imagine to represent a figure or object |
| axis | An imaginary line that passes through a planet's center and its north and south poles, about which are the planet rotates |
| rotation | A spinning motion of a planet on its axis |
| revolution | The movement of an object around another object |
| orbit | The path of an object as it revolves around another object in space |
| calendar | A system of organizing time that defines the beginning, length, and divisions of a year |
| solsice | Either of the two days of the year on which the sun reaches its greatest distance north or south of the equator |
| equinox | Either the two days of the year on which neither hemisphere is tilted toward or away from the sun |
| force | A push or pull extorted on an object |
| gravity | The attractive force between objects; the force that moves objects downhill |
| law of universal gravitation | The scientific law that states that every object in the universe attracts every other object |
| mass | The amount of matter in an object |
| weight | A measure of force of gravity on an object |
| inertia | The tendency of an object to resist a change in motion |
| Newton's first law of motion | The scientific law that states on object at rest will stay at rest and a object in motion will stay in motion with a constant speed and direction unless acted by a force |
| phase | One of the different apparent shapes of the ,soon as seen from earth |
| eclipse | The partials or total blocking of one object in space by another |
| solar eclipse | The blocking of sunlight to earth that occurs when the moon is directly between the sun and the earth |
| umbra | The darkest part of a shadow |
| penumbra | The part of a shadow surrounding the darkest part |
| lunar eclipse | The blocking of sunlight to the moon that occurs when the earth is directly between the sun and moon |
| tide | The periodic rise and fall of the level of water in the ocean |
| spring tide | The tide with the greatest difference between consecutive low and high tides |
| neap tide | The tide with the least difference between consecutive low and high tides |
| maria | Dark, flat areas on the moon's surface formed from house ancient lava flows |
| crater | A large round pit caused by a meteoroid |
| meteoride | A meteoroid that passes through the atmosphere and hits earth's surface |
| meteor | A streak of light in the sky produced by the burning of a meteoroid in Earth's atmosphere |
| comet | A loose collection of ice and dust that orbits the sun, typically in a long narrow orbit |
Created by:
Arianna Okete