Heat and Energy Unit 1 Vocabulary Review

12345678910111213141516171819202122232425262728
Across
  1. 4. breaking apart of a nucleus into smaller nuclei
  2. 5. very high-speed electron
  3. 8. mass and energy cannot be created or destroyed; they can only change forms
  4. 9. very energetic electromagnetic radiation
  5. 12. process whereby a nucleus releases radioactive particles and energy
  6. 13. weapon powered by fission
  7. 16. reaction inside plants that combines water, carbon dioxide, and sunlight to produce sugar and oxygen
  8. 18. weapon powered by fusion
  9. 19. combining of nuclear particles to form a larger nucleus
  10. 20. energy that travels in waves through matter such as air, water, or wood and can be detected by the human ear
  11. 21. electromagnetic waves that can be detected by the eye
  12. 22. energy that is in motion
  13. 24. flow of electrons
  14. 25. energy of movement
  15. 26. energy that is stored
  16. 27. releasing of energy through burning
  17. 28. energy stored in the nucleus of an atom
Down
  1. 1. another name for digestion
  2. 2. energy that comes from plant and animal matter
  3. 3. process that breaks down sugar molecules to release the stored energy
  4. 6. another name for a thermonuclear bomb
  5. 7. material with unstable nucleus
  6. 10. attractive and repelling forces contained in magnetic materials
  7. 11. measuring the amount of radioactive elements in a substance to determine its age
  8. 13. two protons and two neutrons with no electrons
  9. 14. petroleum products formed from the remains of plants and animals that were buried in the past and placed under pressure
  10. 15. total kinetic energy that an object's molecules possess
  11. 17. ability to perform work
  12. 23. energy stored in chemical bonds