Science Vocab Words Crossword

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Across
  1. 3. a transparent material that allows light of a particular colour to pass through
  2. 4. An organic catalyst
  3. 5. The chemical store of glucose in the liver and muscles.
  4. 6. the range of colours that can be seen by the eye (red, orange, yellow, green, blue, indigo and violet).
  5. 9. the entire range of frequencies of electromagnetic radiation, from high-energy gamma rays to low-energy radio waves
  6. 10. the nerves that carry messages to and from the central nervous system and other parts of the body.
  7. 11. Of the cerebrum (part of the brain that is responsible for coordination and balance) of the brain.
  8. 12. a portion of the brain that constantly checks the internal environment of the body.
  9. 13. A wave on which its particles vibrate at right angles to the direction of motion of the wave
  10. 14. Chemical substances that act as messengers in the body.
  11. 15. a method of transmitting an internet signal using radio waves
  12. 18. splitting of white light into separate colours
  13. 19. Any factor that stimulates a receptor and brings about a response.
  14. 20. A specialized cell or group of nerve endings that responds to sensory stimuli.
  15. 21. The distance between successive wave crests, measured in metres.
Down
  1. 1. origin of all the other colours. They are red, blue and green.
  2. 2. a nerve cell
  3. 3. A substancwe that speeds up the rate of a reaction without being used up in the process.
  4. 7. They are waves that contain an electric field and a magnetic field and carry energy. It includes visible light, radio waves, gamma rays, and X-rays.
  5. 8. the brain and the spinal cord
  6. 16. a means of gathering information about an object or event without direct physical contact.
  7. 17. Hormone produced in the pancreas that causes the liver and muscles to extract glucose from the bloodstream and store it in the liver and muscles.