Getting to Space

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Across
  1. 3. The state of shining by reflecting light; glitter, sparkle, sheen, or gloss
  2. 5. Made up from two or more types of atoms joined together by chemical bond.
  3. 7. Substances that are made up of only one kind of particle. It could have compounds or just elements
  4. 11. A force that pushes an object from itself
  5. 12. Opposite forces are not the same size, do not cancel.
  6. 13. Found in the nucleus, have no charge (neural)
  7. 15. The number on the periodic table that tells us the number of protons (and hence electrons)
  8. 19. Found in the nucleus, positively charged
  9. 21. The number on the periodic table that tells us then number of protons + neutrons found in the nucleus
  10. 23. Substances that are only made up of one type of atom. They cannot be broken down into anything smaller.
  11. 25. A change where the substance remains the same, but the arrangement of particles may change.
  12. 27. A measure of how much heat a material can conduct
  13. 28. A force that opposes motion, in air is called drag (or air resistance)
  14. 30. A measure of how much electricity a material can conduct
  15. 31. The state change from liquid to solid
Down
  1. 1. The central positively charged core of an atom that contains almost all of its mass
  2. 2. A measure of how compact a substance is (more dense = more heavy)
  3. 4. The state change from liquid to gas
  4. 6. The state change from solid to liquid
  5. 8. A combination of two or more substances in any proportion. It could have compounds and/or elements
  6. 9. Found orbiting the nucleus, negatively charged
  7. 10. An upwards force on an object in contact with another
  8. 14. The downwards force pulling objects towards the centre of the Earth, due to gravity
  9. 16. The state change from gas to liquid
  10. 17. The ability of a material to bend without breaking
  11. 18. Opposite forces are the same size and cancel out.
  12. 20. The beginning “ingredients” of a chemical reaction
  13. 22. The state change from solid to gas
  14. 24. The end result of a chemical reaction
  15. 26. A measure of how much force a material can withstand before it breaks
  16. 28. A push or a pull. It is measured using a unit called Newton (N).
  17. 29. A change where a reaction occurs and a new substance is formed.