Photosynthesis - Write on Fourth grade

Photosynthesis - Write on Fourth grade - Transcript

Photosynthesis
Write On Fourth Grade

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

In this activity you will


Learn about the process of photosynthesis Write a paragraph describing how plants use photosynthesis to live and grow

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

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

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

Plants need water for photosynthesis






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

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

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

Writing Activity


Explain how plants use photosynthesis to live and grow