Photosynthesis

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Photosynthesis

  1. 1. Photosynthesis Write OnFourth Grade
  2. 2. Learner Expectation Content Standard: 3.0 Food Production and Energy for Life The student will study the basic parts of plants, investigate how plants produce food, and discover that plants and animals use food to sustain life. Learning Expectations: 3.1 Realize that plants and animals use food for energy. 3.2 Recognize the function of specific structures in organisms that allow them to obtain and use energy.
  3. 3. In this activity you will: Learn about the process of photosynthesis Write a paragraph describing how plants use photosynthesis to live and grow
  4. 4. Plants need energy to grow Plants need energy to grow Plants get energy from the sun Plants use energy to carry on the process of photosynthesis
  5. 5. Chlorophyll is needed for photosynthesis Chlorophyll is a green material in plants that traps light energy Chlorophyll is located in long, green cells Plants get their green color from chlorophyll Chlorophyll is needed for photosynthesis
  6. 6. Plants need air for photosynthesis Plants have tiny holes in the bottom of each leaf The tiny holes let air go in and out of the leaf Plants use a gas in the air called carbon dioxide Plants release oxygen back into the air
  7. 7. Plants need water forphotosynthesis Plants get water from the soil Roots bring water from the soil to the plant Veins in each leaf carry water throughout the plan Water is needed for the cells of the plant to carry on photosynthesis
  8. 8. Plants need sunlight for photosynthesis Cells in the plant trap light energy from the sun Light energy helps change carbon dioxide and water to a simple sugar in plants The plant uses the simple sugars to help it grow
  9. 9. Photosynthesis helps plants live and grow! Photosynthesis is the process by which plants trap the sun’s energy Plants use the sun’s energy to change carbon dioxide and water into sugar
  10. 10. Writing Activity Explain how plants use photosynthesis to live and grow.

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