| Term | Definition |
|---|
| meteroid | small rocky body that travels through space |
| meteor | when a meteroid burns up in earth's atmosphere |
| meteorite | what a meteroid is called when it hits earth's surface |
| 3 types of meteorites | stony, metallic, stony-iron |
| meteor showers | occur when earth passes through dusty debris from comets |
| atmosphere | less impacts, weather |
| torino scale | a scale that rates the hazard level of objects heading towards earth |
| 0 | white, not going to hit |
| 1 | green, not going to hit |
| 2, 3, 4 | yellow, probably won't hit |
| 5, 6, 7, | orange, might hit |
| 8, 9, 10 | red, will hit |
| small objects | burn up before they hit earth's surface |
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