Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
science ch 2 sec 2
| Question | Answer |
|---|---|
| nuclear fusion | the process in which hydrogen antoms join together to form helium |
| photosphere | the inner layer of the suns atmosphere |
| chromosphere | the middle layer of the suns atmosphere |
| corona | the outer layer of the suns atmosphere |
| solar flares | an explosion of hydrogen gas from the suns surface that occurs when loops in sunspot regions suddenly connect |
| solar winds | a stream of electrically charged particles produced by the suns corona |
| sunspots | a dark area of gas on the sun that is cooler than the surrounding gases |
| prominence | a loop of gas that protrudes from the suns surface linking parts of sunspot regions |
| Terrestrial planets | small rocky surfaces on the four inner planets |
| Retrograde rotation | the spinning motion from east to west |
| Greenhouse effect | the trapping of heat from a planets atmosphere |
| gas giants | the name given to the four outer planets |
| comets | chunk of ice and dust whose orbits are long and narrow |
| meteors | a streak of light in the sky produced by the burning of a meteorite |
| meteorite | a meteor that hits earths surface |
| meteoroid | a chunk of rock or dust in space |
| asteroid | objects moving around the sun that are to small and too numerous to be considered planets |
| asteroid belt | the region of the solar system between the orbits of mars and jupiter |
Created by:
bumblebee7
Popular Science sets