Activity
It's About Time

The Nitrogen and Phosphorous Cycles

For Teachers 7th - 12th
How do we affect the ecosystem, and what can we do to preserve it? Pupils explore chemicals that promote and inhibit plant growth, then discuss the importance of nitrogen and phosphorus to the survival of organisms and describe how...
Handout
University of Maryland

Umbc/plant Growth and Development

For Students 9th - 10th
A good description of the growth and changes in plants from the seed through the adult plant. College level discussion that includes the chemicals involved in the regulation of plant growth.
Handout
BiologyWise

Biology Wise: An Overview of the Plant Growth Process

For Students 3rd - 5th
Discusses the basic needs of plants and the stages they go through in developing from a seed.
Handout
BiologyWise

Biology Wise: Life Cycle of a Bean Plant

For Students 3rd - 5th
The lowly bean plant is a favorite subject for the study plant growth with younger students. This resource explains how to take care of a bean plant and the different stages of development it goes through.
Handout
BiologyWise

Biology Wise: Lifecycle of a Plant

For Students 9th - 10th
Describes the life cycle of a plant as it develops from a seed into a seedling, grows into a mature plant, develops flower buds, goes through pollination and double fertilization, and produces seeds.
Handout
NC State University

Horticulture Information Leaflets: Overcoming Seed Dormancy: Trees and Shrubs

For Students 9th - 10th
Good list of examples of how dormancy in tree seeds can be overcome. In the discussion, you'll pick up a fair amount about dormancy in plants.