Science 1st Semester Review

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Across
  1. 3. something you can observe using your 5 senses
  2. 5. state of matter where particles move freely but keep their volume
  3. 7. anything that has mass and takes up space
  4. 8. does not allow thermal/electrical energy to pass through
  5. 11. Earth's __________ causes the seasons and takes 365 days
  6. 12. the condition of the atmosphere at a given time; changes frequently
  7. 15. light bends as it moves from one substance to another
  8. 16. the amount of space an object takes up
  9. 18. state of matter where particles are spread out very far apart
  10. 20. batteries are an example of this type of energy
  11. 22. the force that pulls us down towards the center of the Earth
  12. 23. water changes from a liquid to a gas
  13. 25. they make up everything around us and are too small to be seen with the human eye
  14. 27. 2 or more substances mixed together that maintain their physical properties (Example: trail mix)
  15. 28. light stops when it reaches an object
  16. 32. the ability of a substance to dissolve in another substance
  17. 34. a push or a pull on an object
Down
  1. 1. energy of charges particles
  2. 2. allows thermal/electrical energy to pass through
  3. 4. energy of heat
  4. 6. the ability of an object to sink or float in water
  5. 9. water changes from a gas to a liquid
  6. 10. _________ forces are balanced and cause no change in movement
  7. 11. light bounces off of an object
  8. 13. the amount of matter in an object; measured in grams
  9. 14. the average weather conditions in an area over a long period of time
  10. 17. energy of movement
  11. 19. water that evaporates from trees
  12. 21. light passes through an object
  13. 24. Earth's _________ causes the day/night cycle and shadows to change length and direction throughout the day
  14. 26. water that falls from the sky as rain, snow, sleet, or hail
  15. 29. a type of mixture where one substance dissolves in another evenly (example: lemonade)
  16. 30. when 2 objects rub together causing them to slow down and eventually stop
  17. 31. a circuit must be ___________ for it to work correctly
  18. 32. state of matter where particles are tightly packed
  19. 33. _________ forces are not balanced and cause a change in movement to an object