Unit 11 Space Word Scramble
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| Question | Answer |
| the length of a straight line through the center of an object | diameter |
| object in the sky made of very hot spinning gases | star |
| our nearest star; made up of gases around which the planets revolve | sun |
| dark areas on the Sun’s surface that are cooler than the rest of the sun’s surface. | sunspots |
| the path an object takes around another object | orbit |
| to move in an orbit or circle around something | revolve |
| one complete orbit | revolution |
| an object that travels around another object | satellite |
| Earth’s only natural satellite | moon |
| of or relating to the moon | lunar |
| layers of gases which surround a star, like our Sun, or a planet, like our Earth | atmosphere |
| a force that pulls objects toward each other | gravity |
| To spin around a center point, or axis | rotate |
| an imaginary line that passes through the North Pole, the South Pole, and the center of the Earth | Earth's axis |
| The changes in the moon’s appearance as the position of the Earth, moon and sun change; | moon phases |
| the rise and fall of sea levels caused by the pull of gravity between Earth, the moon and the Sun; | tides |
| a system that consists of a star and everything within reach of the star’s gravity. | solar system |
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