Year End Review

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Across
  1. 2. A thin layer that controls what enters and leaves a cell
  2. 3. Having two different alleles for a trait
  3. 4. The body system that breaks down food into nutrients
  4. 10. Force equals mass times acceleration
  5. 13. When humans choose which organisms reproduce based on desired traits
  6. 14. The control center of a cell that contains DNA
  7. 18. Melted rock on Earths surface
  8. 19. A force involving electricity and magnetism
  9. 20. Having two identical alleles for a trait
  10. 21. The movement of Earths plates that shape the surface
  11. 22. The body system that brings in oxygen and removes carbon dioxide
  12. 26. An object stays at rest or in motion unless acted on by a force
Down
  1. 1. The process where organisms with helpful traits survive and reproduce more
  2. 5. Rock formed from compacted and cemented sediments
  3. 6. A trait that only shows when two copies are present
  4. 7. Rock formed from cooled magma or lava
  5. 8. Rock changed by heat and pressure
  6. 9. The part of plant cells that uses sunlight to make food
  7. 11. A trait that shows up when at least one copy is present
  8. 12. The thick layer of Earth beneath the crust
  9. 15. The genetic makeup of an organism
  10. 16. Melted rock beneath Earths surface
  11. 17. The force that pulls objects toward each other
  12. 23. The physical traits you can see in an organism
  13. 24. For every action there is an equal and opposite reaction
  14. 25. The part of a cell that releases energy from food