Science Extra Credit Crossword

123456789101112131415161718192021222324252627282930313233
Across
  1. 2. in a flower, one of the outermost rings of modified leaves that protect the flower bud
  2. 6. Moist, loosely packed layer of cells containing chloroplasts.
  3. 8. Evaporation of water from the leaves of a plant
  4. 10. Single layer of cells on the upper and lower surfaces of a leaf. Do not contain chloroplasts.
  5. 14. The transfer of pollen from male reproductive structures to female reproductive structures in plants
  6. 15. Structure in a plant that contains xylem tissue and phloem tissue.
  7. 18. A directional growth of a plant in response to touch.
  8. 19. response of a plant to the force of gravity
  9. 20. study of plants
  10. 21. type of vascular tissue that carries nutrients and food from place to place inside the cell
  11. 22. The part of a flower that contains ovules.
  12. 25. Sticky portion at the top of the style, where pollen grains land
  13. 26. Small openings on the underside of a leaf through which oxygen and carbon dioxide can move
  14. 27. Plants
  15. 28. Pith, xylem, cambium, phloem, cortex, epidermis
  16. 30. plant stem structure that contains xylem and phloem tissue
  17. 31. the male reproductive organ of a flower
  18. 32. strong, hard, usually brown stem that can support tall plants
  19. 33. vascular tissue that carries water upward from the roots to every part of a plant
Down
  1. 1. The female reproductive part of a flower
  2. 3. A plant's response to seasonal changes in length of night and day
  3. 4. the points at which leaves are attached
  4. 5. chemical substances that are made by plants and that affect how plant tissues grow
  5. 7. A structure that develops within the ovary of a seed plant and contains the female gametophyte.
  6. 9. A colorful, leaflike structure of some flowers
  7. 11. A plant's response to light
  8. 12. Vascular bundles are often supported by thick-walled cells
  9. 13. the tiny granules that contain the male gametophyte of seed plants
  10. 16. root system made up of one large root and many small, thin roots
  11. 17. A root system made up of many roots that are about the same size
  12. 23. the layer of cells in a leaf where most photosynthesis occurs
  13. 24. The two cells that flank the stomatal pore and regulate the opening and closing of the pore.
  14. 29. A growth response that results in the curvature of whole plant organs toward or away from stimuli owing to differential rates of cell elongation.