Science and Maths Crossword

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Across
  1. 6. The element with symbol W
  2. 8. An algebraic expression with multiple terms
  3. 9. The product of force and perpendicular distance from a pivot
  4. 12. Molecules that have the same molecular formula but different displayed formulae
  5. 13. A wave whose oscillations are perpendicular to the direction of motion
  6. 15. A trigonometric function; a line that touches but doesn't cross a circle
  7. 16. The name for a blood vessel that runs between the heart and lungs
  8. 18. A natural one is the moon and a manmade one is the ISS
  9. 19. A famous female physicist that discovered radioactive elements
  10. 21. When a light ray changes speed and sometimes direction at a material boundary
  11. 25. The form energy is produced in from respiration
  12. 27. A vessel that transports water around a plant
  13. 28. A type of reaction where one reagent loses electrons and the other gains electrons (or oxygen)
  14. 31. A piece of data that is at 25%, 50% or 75% of the way through all of them
  15. 32. A famous mathematician whose theorem finds side lengths of right angled triangles
  16. 35. _ series. A group of substances with the same functional group and similar chemical properties
  17. 37. Hooke's Law states force is directly proportional to _ until the limit of proportionality
  18. 38. _ paper. An indicator that changes colour with pH
  19. 39. The general term for the things that reside in the nucleus of an atom
  20. 40. An atom that has gained electrons
  21. 41. A chemist who discovered the constant 6.02 x 10^23
Down
  1. 1. The specifically shaped molecule that an enzyme fits in to complete a reaction
  2. 2. A famous biologist that came up with the theory of evolution
  3. 3. A scientist who was a pioneer in WW2 nuclear weapons; the alias for the main Breaking Bad chemist
  4. 4. Molecules travelling from a higher to a lower water potential
  5. 5. The physical characteristics that are determined by something's genes
  6. 7. A product of the reaction between diols and dicarboxylic acids that also produces water
  7. 10. A type of bar chart where the class width is not uniform
  8. 11. The amount of energy transferred per unit charge in a circuit
  9. 14. Something which produces a magnetic field when a current is applied to it
  10. 17. An angle that is between 0 and 90 degrees
  11. 20. The product of current and potential difference
  12. 22. The amount of time for the activity of a radioactive sample to halve
  13. 23. A reaction that takes in more energy than it releases
  14. 24. A blood component that causes clotting to prevent blood loss
  15. 25. Alternative forms of a gene that arise due to mutation
  16. 26. A famous physicist who put forward three laws to do with force and motion
  17. 29. When a massive nucleus absorbs a neutron and becomes two lighter daughter nuclei
  18. 30. The process done to convert long chain alkanes into short chain alkanes and alkenes
  19. 33. A flask used in a titration that is constantly swirled to mix contents
  20. 34. (A Despicable Me character) Something with magnitude and direction
  21. 36. A section of a circle made from two radii and an arc