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6th Grade Chapter 20
The Solar System
| Question | Answer |
|---|---|
| heliocentric system | Earth revolves around the sun |
| nuclear fusion | the way the sun produces its energy |
| photosphere | the layer you are looking at when you look at an image of the sun |
| solar wind | a stream of electrically charged particles that extend outward from the sun's corona |
| prominences | loops of gas on the sun that link different parts of sunspot regions together |
| asteroid belt | located between Mars and Jupiter |
| meteoroids | usually come from comets or asteroids |
| Saturn's rings | are made up mostly of chunks of ice and rock |
| Kepler | discovered that each planet's orbit is an ellipse |
| all inner planets | are small and have rocky susrfaces |
| four outer planets | are much larger than Earth and are made mainly of hydrogen and helium |
| Mercury | smallest terrestrial planet |
| meteor | a streak of light produced when a meteoroid enters Earth's atmosphere |
| Galileo | scientist who first used a telescope to make discoveries that supported the heliocentric model |
| the orbits of comets | are long, narrow ellipses |
| Uranus | rotates on its side |
| Jupiter | the largest, most massive planet |
Created by:
Mrs. Gordon
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