4th grade Terms Review

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Across
  1. 4. something that can change in an investigation
  2. 5. something that scientists make to answer questions
  3. 7. describes the amount of matter in an object
  4. 10. what something can do
  5. 11. why something happens
  6. 13. Information is sent from the light receptors, through the ________ nerve, to the brain.
  7. 14. a structure that responds to information
  8. 16. The predator’s ________ forms an image of the prey.
  9. 18. how an animal gets information from its environment
  10. 19. describes the size of matter
  11. 20. Information from light gets to the _______ receptors at the back of the predator’s eye.
Down
  1. 1. The _________ System is the system of measurement used in the US.
  2. 2. describes the amount of space an object takes up
  3. 3. a description of how something works
  4. 6. information that supports an answer to a question
  5. 8. the real world
  6. 9. Light, which carries information, enters the predator’s eye through the _______
  7. 12. in from the environment
  8. 15. to cause light to bounce off a material
  9. 17. The _______ System is used for ease of conversion and simplicity of terminology.