At the end of the experiment, have them present the experimental design and data to the class. Back to Top 1. Consider plant roots and stems. Explain which tropisms affect both these plant organs. Consider both positive and negative tropic responses.
Rain forests are unique and diverse plant habitats.
Discuss tropisms that plants need to survive at various levels in the forest. Include the canopy, the understory, and the forest floor in your discussion. Observe flowers growing in your neighborhood. Back to Top Use the following three-point rubric to evaluate students' work during this lesson. Students should be able to work in groups to set up the experiment, make a hypothesis about the way the roots will grow, observe the seeds over a period of time, record their observations, and draw conclusions from the experiment.