Curated OER
The Importance of Tropisms
Students investigate plant tropisms using the scientific method. In this life science lesson, students learn about tropisms and test the response of corn seedlings to gravity. Response questions, extensions, and an adaptation for older...
University of Hamburg
University of Hamburg: Photoperiodism and Stimulation
A good summary of the photoperiodic effects of plants. Discussion of the way that the length of the day effects the growth of plants.
McGraw Hill
Mhhe: Plant Growth and Growth Regulators
A very good overview of the hormonal control of plant responses to different environmental cues. Good place to start research.
CK-12 Foundation
Ck 12: Biology: Plant Responses
[Free Registration/Login may be required to access all resource tools.] Describes ways that plants respond to environmental stimuli.
CK-12 Foundation
Ck 12: Biology: Plant Adaptations and Responses Study Guide
See how plants have adapted to many different environments, including the water, the desert, and the air.