BTEC crossword on the course so far

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Across
  1. 2. This is the name of a telescope in space used to observe distant galaxies.
  2. 4. Beta radiation is made of this.
  3. 6. This type of radiation does the most damage (most ionising).
  4. 7. A battery stores this type of energy.
  5. 9. This is the only part of the electromagnetic spectrum we can see.
  6. 12. This wave type has the longest wavelength.
  7. 14. The three things needed to generate electricity are a coil of wire, movement and a _ _ _ _ _ _ .
  8. 15. This is the useful energy given out by a light bulb.
  9. 16. This type of electromagnetic wave allows us to see broken bones.
Down
  1. 1. This is the name of a theory scientists use to suggest how the universe began.
  2. 3. A thin sheet of this metal stops beta radiation.
  3. 5. This is the driving force that pushes electricity around a circuit.
  4. 8. This is the theory that says that galaxies are moving away from us and appear red.
  5. 10. This type of electromagnetic wave allows people to see in the dark.
  6. 11. This is the main type of energy given out by a fire.
  7. 13. This ray has the shortest wavelength.