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Chapter 11 Grade 4
vocabulary for Chaper 11Grade 4
| Question | Answer |
|---|---|
| an imaginary line through the center of an object | axis |
| a group of stars that forms a pattern in the night sky | constellation |
| a huge system, or group of stars held together by gravity | galaxy |
| the four largest planets in Earth's solar system- Jupiter, Saturn, Uranus, and Neptune- that consist mainly of gases | gas giants |
| the force that pulls bodies or objects toward other bodies or objects | gravity |
| an event in which the Moon passes an event in which the Moon passes into Earth's shadow | lunar eclipse |
| the path that Earth and seven other planets make as they move around the Sun | orbit |
| changes in the amount of sunlight that reaches the side of the Moon that faces Earth as the Moon orbits Earth | phases of the Moon |
| a large body of rock or gas that does not produce its own light and orbits around a star | planet |
| the movement in a path around an object, as when the Earth travels around the Sun; one complete trip around the Sun | revolution |
| the turning of a planet on its axis | rotation |
| a system made up of the Sun, eight planets, and smaller bodies that orbit the Sun | solar system |
| a huge ball of very hot gases that gives off light, heat, and other kinds of energy | star |
| the system made up of all the matter and energy there is, including the galaxies, and their stars, planets and moons | universe |