Solar System
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Astronomy | The study of space and celestial objects such as stars, planets, and moons.
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| Astronomer | Someone who studies astronomy.
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| Rotation | The action of turning around an axis or center
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| Revolution | When a celestial body orbits once fully around a sun creating one year.
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| Orbit | The path a celestial body or satellite takes around another celestial body or satellite.
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| Constillation | A group of stars that that form a recognizable shape or image.
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| Geocentric theory | The idea that the Earth is the center of the universe, instead of the sun, and that all the planets and celestial bodies orbit it.
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| Heliocentric theory | The Earth, planets, and other objects orbit the sun, instead of the Earth.
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| Comet | A frozen ball of dust that when near the sun, has a tail pointed away from the sun.
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| Gravity | An invisible force that attracts objects toward the origin of it.
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| Solar system | A collection of celestial bodies and other objects orbiting a star.
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| NASA | The National Aeronautics and Space Administration.
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| Meteor | A small body of space matter that when entering a planets atmosphere, it becomes incandescent.
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| Telescope | A device that makes far away objects seem closer and clearer.
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| Solstice | When the sun reaches the highest or lowest point in the sky at solar noon, marked by the shortest and longest days.
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| Equinox | When the sun's light points directly at the equator and their is equal day and night.
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| Axis | An imaginary line drawn through a planet that they rotate on.
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| Equator | An imaginary line drawn around the center Earth dividing the Southern and Northern Hemispheres.
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| Waxing | To Grow
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| Waning | To Shrink
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| Moon Phases | Stages the moon goes through during its orbit.
New Moon, Waxing Crescent, 1st Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, 3rd Quarter, Waning Crescent...
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| Moon's orbital tilt | 5 degrees
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| Sun | A star in which planets orbit.
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| Satellite | An object that orbits something.
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| Orbit | The path a celestial object takes around another.
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| Solar Eclipse | When the moon moves in front of Earth and blocks out the suns light
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| Lunar eclipse | When the Earth crosses in front of the moon and blocks out its light.
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| Maria | A flat surface eon the moon that looks like water. Latin for "seas"
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| Tides | The alternate rising and falling of ocean levels. High tide when the tides are taller, and Low tide when the tides are shorter.
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| Spring tide | When the SEM are aligned, and the high tide is unusually strong.
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| Neap tide | When the sun and moon are at a right angle, there is the lowest difference between tides.
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| Umbra | The most shaded part of the moon's or earth's shadow during an eclipse.
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| Penumbra | The partially shaded part of the moon's or earth's shadow during an eclipse.
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