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Earth-Sun-Moon
Topic 11: Lesson 1: Movement in Space
| Question | Answer |
|---|---|
| a body that orbits a planet | satellite (moon) |
| a giant ball of super-heated gas or plasma, composed of hydrogen and helium | star |
| an object that orbits the sun, is large enough to have become rounded by its own gravity, and has cleared the area of its orbit of any debris | planet |
| a streak of light produced when a small piece of rock or ice, known as a meteoroid , burns up as it enters Earth's atmosphere | meteor |
| a cold mixture of dust and ice that develops a long trail of light as it approaches the sun | comet |
| a pattern or group of stars that people imagine represents a figure, animal or object | constellation |
| Earth-centered model of the solar system where all the planets and stars circle Earth | geocentric |
| sun-centered model of the solar system where all the planets and stars circle the sun | heliocentric |
| oval shape | ellipse |