In this activity, students grow plants hydroponically in the classroom in order to better understand the basic growth needs of plants.

In this investigation, students consider whether there is a relationship between the number of spines on a holly leaf and its height above the ground.

In this lesson, students investigate the strong gravitropic response in dandelion flower stalks.

This project starter gives some ideas of ways that structural responses in plants can be explored.

In this inquiry-based lab, students will construct an experimental setup to compare the rate of photosynthesis to the rate of respiration. This will make it possible to perform a quantitative analysis of the rate of photosynthesis under different light intensities.

In this activity, students make the root of a seedling grow through a maze by rotating a petri dish to different angles. When a seed germinates, a root and a shoot appear. Their directional movements are a response to gravity or gravitropism. Primary roots show positive gravitropism as they grow toward gravity.

Students demonstrate how different plant materials show different amounts of catalase activity - and the most metabolically active tissues show the greatest activity. The procedure can be used to show differences in activity in imbibed and germinating seeds and in damaged or decaying plant material.