Science

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Across
  1. 1. The gaseous form of water.
  2. 2. An idea or explanation that you then test through study and experimentation.
  3. 7. A flow of charge (in form of electrons or ions).
  4. 9. Of a material - allowing light to pass through so that objects behind can be distinctly seen.
  5. 10. The smallest part of elements, made up of protons, electrons and neutrons.
  6. 12. Particles made up of at least two atoms connected with a chemical bond.
  7. 13. They do not let heat or electricity travel through them easily e.g. plastic.
  8. 17. A force that keeps the boat floating.
  9. 18. Charged particles.
  10. 21. Increase in speed or rate.
  11. 23. Of a material - easy to bend.
  12. 24. Of a material - allowing liquids or gases to pass through it.
  13. 27. A shape that reduces the effect of air or water resistance on an object.
  14. 29. The amount of space taken up by an object or substance, masured in milliliters.
  15. 30. It always travels from a warmer area to a cooler one.
  16. 31. A state of matter in which particles are arranged in a regular way and cannot move from place to place.
  17. 33. Another name for upthrust force.
  18. 34. The resistance that one surface or object encounters when moving over another.
Down
  1. 1. A measure of the strength of gravity acting on an object, measured in newtons.
  2. 3. A force that tries to slow down things that are moving through water.
  3. 4. Of a material - easily set on fire.
  4. 5. A tiny portion of matter.
  5. 6. Any substance that is used to make something.
  6. 8. Everything around us, including us.
  7. 11. Unit of force.
  8. 12. A measure of the amount of matter inside an object, measured in grams.
  9. 14. Piece of equipment containing a spring, used to measure forces.
  10. 15. Push or pull.
  11. 16. A characteristic that can be measured and that can assume different values.
  12. 19. At this temperature particles stop moving.
  13. 20. An Italian scientist who formulated the basic law of falling bodies.
  14. 22. Pure substance divided into metals and non-metals.
  15. 25. The amount of mass per unit of volume - the measurement of how tightly a material is packed together.
  16. 26. A transformation in which a gas turns into a liquid.
  17. 28. They allow heat or electricity to travel through them easily e.g. metals.
  18. 32. A pulling force exerted by the Earth.