Grade 7 Science Review

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Across
  1. 2. The control center of the cell.
  2. 6. An object's resistance to a change in motion.
  3. 12. Heat transfer through direct contact.
  4. 13. Energy cannot be created nor ____.
  5. 14. Causes winds to curve because of the rotation of the Earth.
  6. 16. This process is how new body cells are created.
  7. 17. Narrow air belts, fast-moving, in the upper troposphere (2 words)
  8. 18. Winds that begin in the west and travel east.
  9. 19. The hair-like structures that helps unicellular organisms move.
  10. 20. A chart that traces one trait through many generations.
  11. 21. This type of unicellular organism lives in a colony.
  12. 22. This trait will mask the other.
  13. 23. Main organ of the excretory system that filters blood.
  14. 24. When two alleles in a genotype are the same, they are ____.
  15. 26. Uses pseudopods to eat and move.
  16. 27. To calculate speed, you take the object's distance and divide it by ____.
Down
  1. 1. Organ that absorbs nutrients (2 words).
  2. 3. A book sitting on a table is an example of a ____ force.
  3. 4. System that transports blood throughout the body.
  4. 5. Type of energy that is stored.
  5. 7. An ax is this type of simple machine.
  6. 8. Organelle that provides the cell with energy.
  7. 9. The layer where weather occurs.
  8. 10. Located between 0 and 30 degrees.
  9. 11. To open the blinds,this is the simple machine that is used.
  10. 15. System that brings in oxygen and releases carbon dioxide.
  11. 19. This opposes motion.
  12. 25. The stratosphere contains the ____ layer.