Across
- 2. Most efficient light bulb, stands for light emitting diode
- 5. was limited to40 watt bulbs, is the least efficient and releases the most heat.
- 8. The most volcanic rocky moon orbits Jupiter
- 9. An element in a CFL light bulb that reacts with electrodes
Down
- 1. IO and Europa orbit this planet
- 3. releases gas and water and ice into space and some will slowly come back down
- 4. Titan and Enceladus orbit this planet
- 6. the moon with an iron core and an ice surface with brownish red marks
- 7. this moon is similar to Earth because it has a form of a water cycle with lakes and rivers
- 10. uses mercury and electrodes to create ultraviolet light that with hitting a phosphor coating creates light