Students learn that there is Another Reason for Roots , lesson 9, as they see how roots absorb water by the process of osmosis. Water and nutrients are seen to be distributed through the plant in vascular structures in Water Movement Through Plants , lesson 10. Water and gases are exchanged in leaves to allow photosynthesis. Students see how different leaves can be adapted for different functions and environments in lesson 11, Looking at Leaves . Plants have special adaptations that allow them to reproduce successfully.
Flowers are the reproductive organs of most familiar plants.
The study of flowers becomes the focus for one or two days of interdisciplinary activities in the lesson Flower day , lesson 12. Students display their understanding of reproductive adaptations in lesson 13, Invent a Flower . In lesson 14, Fruits and Seeds , the students see how plants provide for the success of the next generation. As they learn about the loves and adaptations of plants, students develop an awareness of the needs of wild plants in the watershed. They propagate plants in the classroom and learn about the plants they are growing.