Across
- 2. Heat transfer between electromagnetic waves.
- 5. The price of solar panels, (hint not cheap).
- 6. This is a group of solar cells.
- 7. The most common unreliable energy source.
- 9. When an energy source can continue forever.
- 11. Heat transfer between two objects.
- 12. Heat transfer between fluids.
Down
- 1. The time when solar energy can be collected.
- 3. There must a _________ in temperature for heat transfer to take place.
- 4. The introduction of contaminants into a natural area.
- 8. Source of energy for most energy resources.
- 10. The energy released from the sun.
- 13. This is where the energy is collected.