Third Grade Science Test #2

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Across
  1. 1. tiny insects and worms that help to break dead things down
  2. 2. the leaves and branches of a tree
  3. 3. this and bacteria are plant-like organisms which contain no chlorophyll
  4. 5. pine trees have these narrow leaves
  5. 8. the act of moving pollen from flower to flower
  6. 9. these forests have trees that change color in autumn
  7. 11. yellow powdery dust formed by flowers
  8. 12. plants grow these downward to absorb water and minerals from the soil
  9. 14. the part of a plant that makes seeds
  10. 16. in a tree trunk, the lighter rings of wood that carry sap
  11. 17. the part of a plant which carries water and minerals upward and food downward
  12. 18. means to make more of its kind, God designed plant life to do this
  13. 20. these need water, right temperature, air to sprout
  14. 22. structure that holds and protects seeds
  15. 24. green material in plants
Down
  1. 1. a carbon gas given off by people and animals that plants need
  2. 4. all living things depend on these
  3. 6. all of this type of plant have seeds
  4. 7. when a seed is resting
  5. 10. the circles or rings in a tree trunk that show a year's growth of new wood
  6. 11. food-making process of green plants
  7. 13. we need these to live because they give us: oxygen, as food, building materials
  8. 15. ferns and mosses are green plants that begin as this
  9. 19. part of the plant that makes food
  10. 21. the energy that helps plants make food
  11. 23. protective "skin" of a tree trunk