| A | B |
|---|
| reflecting telescopes | use mirrors |
| refracting telescopes | use lenses |
| radio telescopes | detects radio waves |
| visable light | small range of wavelenghts we can see |
| prism | separates light |
| spectroscope | tool used to separate light |
| infrared telescope | detects heat |
| interferometry | links up more than 1 telescope toghther |
| moon | natural satellite |
| station model | uses symbols on a map to record weather data for a certain city |
| Seasons | due to the tilt of the Earth |
| summer solstice | June 21 |
| winter solstice | Dec 21 |
| equinox | the moment when the sun appears to cross the celestial equator |
| vernal equinox | March 21 |
| autumnal equinox | September 21 |
| revolution | one complete trip of a body along an orbit |
| rotation | the spin of a body on its axis |
| X-rays | some invisible wavelenghts of the electromagnetic spectrum |
| electromagnetic spectrum | all of the wavelengths of electromagnetic radiation |
