Heat and electricity crossword

12345678910111213141516171819202122232425262728293031323334353637383940
Across
  1. 2. considered the cleanest-burning fossil fuel
  2. 3. Renewable energy comes from natural sources that replenish, like sun, wind, and water.
  3. 5. Short for hydropower, which generates electricity using moving water, such as rivers and dams.
  4. 7. Movement of heat from warmer to cooler areas, by conduction, convection, or radiation.
  5. 11. Energy released from atom’s nucleus, used for electricity, weapons, and medical treatments.
  6. 13. Energy transferred between objects due to temperature difference, moving from hot to cold.
  7. 15. A measure of surface reflectivity—how much sunlight something reflects versus absorbs.
  8. 17. Raising temperature by transferring energy to something, often using electricity, fire, or sun.
  9. 18. Heat energy transferred by electromagnetic waves, like sunlight or infrared from warm objects.
  10. 19. A form of energy resulting from moving electrons, used to power devices everywhere.
  11. 20. Heat produced by Earth’s processes, like geothermal activity, sunlight, or biological reactions.
  12. 22. The star at the center of our solar system, providing energy, light, heat.
  13. 23. The ability to do work or cause change, existing in many different forms.
  14. 26. Albedo is the measure of how much sunlight a surface reflects, not absorbs.
  15. 27. Energy is the ability to do work or cause change in matter.
  16. 29. A black fossil fuel formed from ancient plants, burned for electricity and industrial energy.
  17. 30. one of the cleanest energy sources
  18. 32. Related to the sun’s energy, used for power, heat, and light.
  19. 33. A colorless gas plants need, humans exhale, and burning fossil fuels releases.
  20. 35. A temperature scale where water freezes at 0° and boils at 100°.
  21. 37. Energy sources from ancient plants and animals, like coal, oil, and natural gas.
  22. 39. Electricity produced by harnessing energy from ocean tides’ regular rise and fall.
  23. 40. Heat energy emitted as electromagnetic waves from all objects above absolute zero temperature.
Down
  1. 1. Gases trapping heat in Earth’s atmosphere, including carbon dioxide, methane, and water vapor.
  2. 2. Energy from sources that cannot quickly replenish, like coal, oil, and gas.
  3. 4. Heat transfer through direct contact between substances, passing energy from particle to particle.
  4. 6. Process of producing electricity from various sources, like turbines, solar panels, or generators.
  5. 8. Heat produced by Earth’s processes, like sunlight, volcanoes, or geothermal sources underground.
  6. 9. Transfer of energy by electromagnetic waves, like sunlight, without direct contact between objects.
  7. 10. Energy emitted by objects as heat in form of infrared electromagnetic waves.
  8. 12. To emit energy as infrared radiation from a hot object to surroundings.
  9. 14. A potent greenhouse gas from landfills, livestock, and fossil fuels, affecting global warming.
  10. 16. Invisible light beyond violet on spectrum, from sun, causes sunburn and sterilization.
  11. 21. The distance between consecutive crests of a wave, determining light’s color or energy.
  12. 24. is moving air caused by pressure differences from uneven heating of Earth.
  13. 25. A measure showing how hot or cold something is, usually in Celsius or Fahrenheit.
  14. 28. Units for measuring temperature, angles, or other quantities, such as Celsius or Fahrenheit.
  15. 30. Creation of heat energy, often from chemical, electrical, or mechanical processes and reactions.
  16. 31. Devices that capture sunlight and turn it into electricity for use.
  17. 33. Heat transfer by movement of fluids (liquids or gases), carrying thermal energy around.
  18. 34. Geothermal is heat from inside Earth, used for energy, heating, and electricity.
  19. 36. Materials or energy sources found in nature, used for human needs and activities.
  20. 38. Long-term rise in Earth’s average temperature, mainly caused by human greenhouse gases.