3rd Grade Solar System
Order by
15 terms
Terms | Definitions |
|---|---|
 Solar System | the sun and the objects that orbit around it |
| Orbit | the path an object takes as it moves around another object in space |
| Planet | a large body of rock or gas that orbit the sun |
| Asteroid | chunk of rock or metal that orbits the sun |
| Comet | large ball of ice and dust that orbits the sun |
| Rotation | the spinning of an object on its axis |
| Axis | an imagnary line that goes through the North Pole and the South Pole |
| Revolution | movement of one object around another object |
| Light year | the distance that light travels in one year, light travels 186,000 miles per second. A light year is 6,000,000,000,000 miles |
| Core | center of the sun, the sun's hottest layer |
| Radiation zone | the sun's thickest layer - (it may take millions of years for the energy from the core to make it's way through this layer) |
| Photoshpere | the inner layer of the sun's atmosphere - most of the light that reaches the planets is released from this layer |
| Chromosphere | large cells of gas called supergranular cells, middle layer of the sun's atmosphere |
| Corona | the outermost layer of the sun's atmoshphere |
| Sunspots | cooler darker areas on the sun |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.