Photosynthesis

Grade 4 ScienceSOL 4.4

What is photosynthesis?

• Process plants use to make their own food

• Plants’ leaves contain chlorophyll• Chlorophyll (green color) makes

photosynthesis possible

The chlorophyll absorbs the sunlight.

The sunlight is combined with water, Carbon Dioxide and nutrients from the soil.

CO2

The chlorophyll processes the ingredients and makes sugarsugar (plant food) and oxygen.

SugarSugar + Air

O2

Plants and animals need each other to survive.

Animals including humans make the CO2 (carbon dioxide) plants need.They (the plants) make the O2 (oxygen) and food we need.