Across
- 2. units for resistance
- 5. formed by the transfer of electrons
- 7. an element of Group 1
- 10. a circuit with parts connected one after another
- 15. the process of combining nuclei
- 19. a material that does the dissovling
- 21. a wave made on a rope for example
- 22. measured in amps
- 24. a reaction that emits energy
- 25. a horizontal row on the periodic table
- 26. positive subatomic particle
- 28. the change from gas to liquid
- 29. neutral subatomic particle
- 31. formed by the sharing of electrons
- 32. a measure of energy in a wave
- 33. a sound wave for example
- 34. an electron/positron emitted in nuclear decay
- 38. began with the Big Bang and is still expanding
- 40. the highest point of a wave
- 41. the ratio of mass per unit volume
- 42. A + B -> C
- 43. a substance that participates in a chemical reaction
Down
- 1. a circuit created with different branches
- 3. looks the same throughout
- 4. a stable non-reactive group on the periodic table
- 6. a positive He nucleus emitted in nuclear decay
- 8. a charged atom
- 9. A -> B + C
- 11. created from the death of the most massive stars
- 12. tearing paper or painting a wall
- 13. a reaction that takes in energy
- 14. attractive force that holds atoms together
- 16. negative subatomic particle
- 17. a voltage source
- 18. burning, rusting, decomposing for example
- 20. the smallest unit of an element
- 23. a vertical column on the periodic table
- 27. the lowest point of a wave
- 30. different parts are visible
- 35. opposing the flow of current in a circuit
- 36. a substance that forms in a chemical reaction
- 37. a material that will dissolve
- 39. the process of splitting a nucleus