SNC1DP Review

12345678910111213141516171819202122232425262728293031323334353637383940414243
Across
  1. 2. a closed path for current to flow
  2. 4. these are organized on the periodic table
  3. 7. an autotroph
  4. 9. an atom that has either a positive or negative charge
  5. 11. a solution of two or more metals
  6. 15. variety of life
  7. 19. all the Earths water, solid, liquid and gas
  8. 20. an element in group 17 of the periodic table
  9. 21. a material that lets electrons flow through it easily
  10. 22. a solid that separates from a solution
  11. 24. ___ current also known as AC
  12. 28. a device that reduces the flow of electric current
  13. 31. zone around Earth where all life exists
  14. 32. a negatively charged subatomic particle
  15. 33. a substance that speeds up a chemical reaction
  16. 34. two or more atoms joined together
  17. 36. a type of circuit with two or more current paths
  18. 38. an atom of the same element with a different # of protons
  19. 39. mass per volume
  20. 40. each element has a unique number of these
  21. 41. a neutral particle in the atoms nucleus
  22. 42. a negatively charged ion
  23. 43. smallest unit of an element
Down
  1. 1. a positively charged ion
  2. 3. a pure substance made up of two or more elements
  3. 5. a heterotroph
  4. 6. a sequence of organisms each feeding on the pervious one
  5. 8. Earth's solid outer layer
  6. 10. a possible answer proposed before an experiment
  7. 11. a device used to measure current
  8. 12. the unit of resistance
  9. 13. a material that does not allow electrons to flow easily
  10. 14. ____-Rutherford diagram
  11. 16. a device that converts chemical to electrical energy
  12. 17. element found in the far right column of the period table
  13. 18. equal to voltage divided by current
  14. 23. mass of living organism in a given area
  15. 25. function a species serves in an ecosystem
  16. 26. a bond in which two atoms share electrons
  17. 27. a type of circuit with only a single current path
  18. 29. describes a non-living part of an ecosystem
  19. 30. a row on the periodic table
  20. 35. describes a species that no longer lives on Earth
  21. 37. ___ metals are found in first column of the periodic table