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Stack #4646093

QuestionAnswer
satellite An object that orbits a planet.
planet An object that orbits a star, is large enough to become rounded by it's own gravity, and has cleared the area of it's orbit.
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.
star A ball of hot gas, primarily hydrogen and helium, that undergoes nuclear fusion.
constellation A pattern or grouping of stars that people imagine to represent a figure or object.
axis An imaginary line that passes through a planet's center and it's north and south poles, about which the planet rotates
rotation The spinning motion of a planet and 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 or organizing time that defines beginning, length, and divisions of a year.
solstice Either of the two days of a year on which the sun reaches it's greatest distance north or south of the equator.
equinox Either of the two days of the year which neither hemisphere is tilted toward or away from the sun.
force A push or pull exerted on an object.
gravity The attractive force between objects; the force that moves an object downhill.
law of universal gravitation The scientific that states take every object in the universe attracts other objects
mass The amount of matter in an object.
weight A measure of the force of gravity on an object.
interia The tendency of an object to resist a change in motion.
Newton's first law of motion The scientific law that states that an object at rest will stay at rest and an object in motion will stay in motion with a constant speed and direction unless acted on by a force.
phase One of the difficult apparent shapes of the moon as seen on Earth.
eclipse The partial 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 Earth and the sun.
umbra The darkest part of a shadow
lunar eclipse The blocking of sunlight to the moon that occurs when Earth is directly between the sun and the moon.
penumbra The part of a shadow surrounding the darkest part.
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 huge ancient lava flows.
crater A large round pit caused by the impact of a meteoroid. A bowl-shaped area that forms around a volcano's central opening.
meteoroid A chunk of rock or dust in space, generally smaller than an asteroid.
Created by: user-1975219
 

 



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