science puzzle

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Across
  1. 2. - A force that attracts two objects to each other
  2. 5. - A collection of all the living and nonliving things in a certain area.
  3. 6. -A force to move soothing toward you
  4. 8. - the fourth step of the scientific method and what I think is the most fun
  5. 11. - A group of all the individuals of the same species in an area.
  6. 13. - something that eats dead animals
  7. 14. - A material that does NOT dissolve in water.
  8. 15. - light bends as it moves through another medium
  9. 16. - A force that pulls metals toward a magnet
  10. 17. - A long-term relationship between different kinds of organisms.
  11. 19. - a light bouncing off a surface
  12. 21. - Pathway that matter and energy follow through in an ecosystem. The arrows in a food chain represent the flow of energy
  13. 22. - the first step of the scientific method
  14. 23. - How high or low a sound is.
  15. 24. - The use of a force to move an object through a distance.
Down
  1. 1. - something that goes through photosynthesis
  2. 3. - A place in an ecosystem where a population lives.
  3. 4. - The last step of the scientific method
  4. 7. - A measure of the distance an object moves in a given amount of time.
  5. 9. - the process plants use to turn water, sunlight and carbon dioxide into food for growth
  6. 10. - A color that absorbs all light and color
  7. 11. - A force to move something away from you
  8. 12. - The substance or material that carries a mechanical wave.
  9. 18. - A group of similar organisms that are able to reproduce.
  10. 20. - A material that allows energy to pass through it easily.