Year 9 Science

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Across
  1. 2. A change in which atoms are rearranged to create a new substance
  2. 6. Type of circuit where each component is connected on its own branch
  3. 8. A chemical .... shows how many atoms of each elements are in a compound
  4. 10. One or two letter code used to identify the elements on the periodic table
  5. 11. The closed path through which the electrical charge can flow
  6. 12. The product in this reaction: carbon + oxygen = ....
  7. 13. Type of circuit where the components are connected in a line
  8. 16. There are more than a hundred substances shown in the periodic table, which cannot be broken into any smaller parts
  9. 19. Group 8 of the periodic table- unreactive gases, which include helium and krypton
  10. 20. The amount of mass in a given volume
  11. 23. A chemical reaction with oxygen that gives out light and heat
  12. 24. You would use this piece of equipment when leaving things out to dry or evaporate
  13. 27. When pouring substances into narrow openings, you would use this piece of equipment
  14. 28. The least reactive metal on the reactivity series
  15. 29. When all the connections in a circuit are joined and the flow of charge is not interrupted, the circuit is ....
  16. 30. Similar to a spoon, this item is used to scoop, scrape and transfer substances
  17. 35. A change which transfers energy to the surroundings
  18. 38. Two or more connected cells in an electrical circuit
  19. 39. Group 1 of the periodic table- reactive metals, which include lithium and rubidium
  20. 41. The name given to the horizontal rows on the periodic ta The elements on the periodic table are organised depending on this
  21. 42. The resulting substances in a chemical reaction
  22. 49. Type of reaction where one metal takes the position of another
  23. 52. When a chemical reaction occurs, .... is transferred to or from the surroundings
  24. 54. Group 7 of the periodic table- reactive non-metals, which include fluorine and iodine
  25. 56. The smallest part of a chemical element
  26. 57. This is required within an electrical circuit to move the charge and create a current
  27. 58. Named after the German chemist Robert Bunsen
  28. 60. A possible source of danger (something you check before conducting an experiment)
  29. 61. This narrow tube is commonly used in practical work in science. It can hold small amounts of substances
  30. 63. A reaction which transfers energy from the surroundings
Down
  1. 1. Method of separating a solution to recover the dissolved substance
  2. 3. The elements on the periodic table are organised depending on this
  3. 4. This shallow, transparent dish is often used to grow cell cultures such as bacteria and fungi
  4. 5. Use this piece of equipment to measure the volume of a liquid
  5. 7. Equipment used to measure voltage
  6. 9. The number on the periodic table that represents the number of protons in an atom’s nucleus
  7. 14. A material that will reduce electrical energy passing through it
  8. 15. A single battery in an electrical circuit
  9. 17. Method of separating dissolved and not dissolved substances in a solution
  10. 18. A device or part of a circuit
  11. 21. When measuring temperature, you would use a ....
  12. 22. Unit of measurement for voltage
  13. 25. A nutrient that is used by the body for growth and repair
  14. 26. Something that can be used to complete or break a circuit connection
  15. 27. This specialised paper helps separate substances such as sand and water
  16. 31. A nutrient that is used by the body as the main source of energy
  17. 32. When observing a chemical reaction, you might feel the chemicals change in
  18. 33. The starting substances in a chemical reaction
  19. 34. The name given to the vertical columns on the periodic table
  20. 36. A type of flask with a triangular shape
  21. 37. This piece of electronic equipment measures mass
  22. 40. Equipment used to measure the flow of electrons in a circuit
  23. 43. The flow of electric charge in a circuit
  24. 44. Unit of measurement for current
  25. 45. A substance made of two or more atoms chemically joined together
  26. 46. This piece of equipment is a three-legged stand
  27. 47. A substance that does not take part in chemical reactions
  28. 48. A material that will allow energy (heat or electrical) to pass through it easily.
  29. 50. The solution used to test for starch
  30. 51. Protective equipment worn in a lab
  31. 53. To stir substances, you would use a ....
  32. 55. The elements on the right-hand side of the table are all ....
  33. 59. This safety equipment is used to protect your eyes during practical work
  34. 62. This piece of equipment comes in different sizes and is used to transport liquid.