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Sun Earth Moon
S.E.M
| Question | Answer |
|---|---|
| Rotation | the action of rotating around an axis or center. |
| Revolution | to go around or movement |
| Orbit | move around the plants |
| Geocentric Theory | a system which puts the Earth in the center of the universe |
| Heliocentric theory | the earth revolves around the sun |
| Astromony | space, and the physical universe as a whole. |
| Solar system | the collection of eight planets and their moons in orbit around the sun |
| Telescope | an optical instrument designed to make distant objects appear nearer |
| Commet | a celestial object consisting of a nucleus of ice and dust |
| Gravity | the force that attracts a body toward the center of the earth |
| Astronomer | an expert in or student of astronomy |
| NASA | The National Aeronautics and Space Administration |
| Axis | an imaginary line about which a body rotates |
| Tilt | move or cause to move into a sloping position |
| Meters | he fundamental unit of length in the metric system |
| Constalation | a group of stars forming a recognizable pattern that is traditionally |
| Vernal Equinox | spring, sun was right at the equator March 21st |
| Autumnal Equinox | fall, Sun is right at the equator september 22nd and 23rd |
| Summer Solstic | summer, the sun is north of the equator at the Tropic of Cancer June 21st |
| Winter Solstic | winter, December 21st the sun is further south at the tropic of capricorn |
Created by:
1964109916
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