Entry 12: In your Agronaut Log, draw a diagram that shows the relationship between people and plants.Nutrients and water travel from the stems to the leaves. The leaves then use the water and nutrients along with sunlight to make food. The food is sent to other parts of the plant. The process in which plants make food is called photosynthesis. In photosynthesis, the leaves use carbon dioxide from the air, nutrients, water, sunlight, and a substance called chlorophyll to make their food, which is called glucose. The process of photosynthesis releases oxygen into the air. Did you notice that in order to make food, the plants use carbon dioxide? Humans breathe out carbon dioxide when we exhale. Then, when the plants are making food, they give off oxygen. Humans inhale oxygen and need it to live.
Entry 12: In your Agronaut Log, draw a diagram that shows the relationship between people and plants.
Leaves can come in many different shapes and sizes. They are designed to catch light and have many openings called stomata that let air and water come and go. You can only see stomata using a microscope. Leaves are covered with a waxy coating called a cuticle that protects them.
