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Science flash cards
| Term | Definition |
|---|---|
| Rotation | spinning on an axis |
| Revolution | spinning around the sun |
| most common elements in the universe | hydrogen and helium |
| light year | how far light travels in a year |
| waxing | getting bigger |
| waning | getting smaller |
| which side of the moon will be lit up during the waxing phases | left |
| Which side is it lit up on during the waning phases? | right |
| Be able to identify moon phases on a diagram | ok |
| solar wind | wind from the sun |
| How long does it take for the moon to go from new moon to full moon? | 14 days |
| Terrestrial planets | planets that have life |
| Gas planets | planets made of gas |
| Inner planets | planets closest to the sun |
| Outer planets | planets farthest from the sun |
| Asteroids | rocks that orbit sun |
| Asteroid belt | where most asteroids are located |
| You don’t need to know the difference between meteors, meteoroids, and meteorites. HOWEVER, study them and know a few things about them. | ok |
| 3 parts | nucleus, tail, coma |
| which direction does the tail point | away from sun |
| what causes the tail | wind |
| photosphere | stars outershell |
| corona | gas envelope of stars and suns |
| solar wind | wind released from sun |
| sun spot | dark spot on sun |
| nuclear fusion | source of suns energy |
| nebula | cloud of dust |
| main sequence | most of a stars life |
| red giant | large star |
| red supergiant | 3x mass of sun, when star runs out of oxygen |
| supernova | explosion of star |
| black dwarf | remains of dead star |
| black hole | area of immense gravity nothing can escape |
| what causes stars to have different life cycles | its mass |
| a protostar must start what to be considered a star | main sequence |
| milky way | a galaxy that contains our solar system |
| elliptical | stretched circle of stars |
| spiral | twisted collection of stars |
| irregular | no shape/random collection of stars |
| what is at the center of the galaxy | galactic center/black hole |