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Astronomy
| Question | Answer |
|---|---|
| Gravity | The force that attracts one object to another or towards the center of the Earth. |
| Solar System | The collection of eight planets and their moons as well as other objects in orbit around the sun. |
| Asteroids | Objects revolving around the sun that are too small and numerous to be considered planets |
| Asteroid belt | The region of the solar system between Mars and Jupiter where asteroids are found |
| Big Bang | The initial explosion that resulted in the formation and expansion of the universe |
| Comet | A ball of ice and dust whose orbit is a long, narrow eclipse |
| Geocentric Theory | A description of the solar system in which all of the planets revolve around the earth |
| Heliocentric Theory | A description of the solar system in which all of the planets revolve around the sun. |
| Inertia | The tendency of a moving object to continue in a straight line or a stationary object to remain in place. |
| Meteor | A streak of light in the sky produced by the burning of a meteoroid in Earth's atmosphere |
| Meteoroid | A chunk of rock or dust in SPACE |
| Meteorite | A meteoroid that has hit Earth's surface |
| Galileo | Early astronomer that used a telescope to study the night sky - discovered moons orbiting Jupiter |
| Ptolemy | Early astronomer that believed that the Earth was at the center of the universe |
| Copernicus | An early astronomer whose theory stated that the SUN is at the center of the universe |
| Kepler | An astronomer that discovered that all of the planets revolve around the sun in elliptical orbits (not circles) |
Created by:
aylamaster
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