Photosynthesis

1. Photosynthesis • Designed by Renata Bouchie

2. Photosynthesis • Photosynthesis is essential to understanding why all life on earth depends upon the existence of plants.

3. The Process of Photosynthesis • Photo means light and synthesis means putting together. • During photosynthesis minerals and water are combined with carbon dioxide from the air.

4. How Does Photosynthesis Help us? • During photosynthesis oxygen is released into the air. • When we breath air, we take in oxygen and release carbon dioxide. • Plants take in carbon dioxide and release oxygen.

5. How do Plants Produce Their own Food? • Most plants can produce all their own food because they contain chlorophyll. • Chlorophyll is a substance that makes the leaves of most plants green. • Green plants use chlorophyll to capture sunlight. • The they use the energy from sunlight to make food.

6. Cycle of Nature • Green plants use the sun’s energy to change water, minerals and carbon dioxide into food and oxygen. • Oxygen is breathed by animals. • Food helps the plants grow. • Plants become food for the animals. • When plants and animals die they decay and return to the soil.

7. If there were no plants... • There would be no food for plant eating animals, so they would die. • There would be no food for the meat eating animals. • There would be no oxygen to breath. • The cycle of nature would be broken- lifeless planet.

8. Food Energy • People get energy from plants in the form of food. • Food energy is stored in almost every part of a plant. • Food energy is the fuel that makes your body work.

9. Plants and People • Plants are part of our lives in many ways. • When we are hungry we eat plants for food. • Every time we take a breath we use oxygen that was released by green plants. • It is a cycle of give and take, borrow and return.

10. Credits http://tqjunior.thinkquest.org/3715/photo3.html Microsoft Word Clip Art