| A | B |
|---|
| 1/100 | centi- |
| meter | basic unit of length in the metric system |
| liter | basic unit of volume in the metric system |
| volume | how much space an object takes up |
| hypothesis | possible solution to a problem |
| 100 mg | .1 g |
| 10,000 mg | 10 g |
| reflecting telescope | optical telescope that uses mirrors to focus light |
| refracting telescope | optical telescope that uses lenses to focus light |
| uv | can cause skin cancer from exposure to the sun |
| electromagnetic spectrum | types of energy waves |
| infrared rays | heat |
| xrays | energy that is most blocked by the earth's atmosphere |
| ozone layer | part of the atmosphere that absorbs UV rays |
| light-year | 9.5 trillion kilometers |
| gravity | force of attraction between two objects |
| data | recorded observations or measurements from an experiment |
| spectrum | band of colors |
| blue shift | would indicate that a star is moving toward earth |
| red shift | would indicate that a star is moving away from earth |
| mass | factor that determines the life cycle of a star |
| binary stars | paired stars |
| color | indicates a star's surfarce temperature |
| magnitude | brightness |
| nebula | where new stars are born |
| constellation | group of stars in a pattern |
| spiral | milky way is a _________ galaxy |
