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...

From tiny organisms to entire biomes, young scientists examine the interdependent relationships tying all living and non-living things together with this collection of ecology resources.

Introduce logarithmic functions and their properties with a straightforward lesson plan. It provides an introduction to new material, examples, and practice problems. The variety of problem types keeps learners engaged while...

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.

Review the main vocabulary and processes in plant tissues and organs.

Discusses the basic needs of plants and the stages they go through in developing from a seed.

A concise, advanced level, review of structure and growth in these plant organs. Illustrations are clear and well labeled. This is an excellent tool for labs or exams.

Site provides a brief explanation of how roots help support a plant.

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.

Describes the structure of seeds, the conditions needed for seeds to germinate, and the steps involved in germination. Also discusses germination in dicots and monocots.

How are prairie plants able to survive fires? This site will explain how seed germination takes place after a prairie fire.

Site provides a brief description of some of the environmental parameters that influence plant growth.

A useful review of plant meristems, growth and cell wall construction. Good illustrations make for easy to understand information.

This three-page article explores the operation of the first hydroelectric power plant and the spread of renewable energy in the United States.

This essay is complemented by useful illustrations of how plant cells enlarge after mitosis and become specialized for different functions. A good supplement to plant growth studies.

This resource identifies the main parts of the photosynthesis process. Learn more about how sunlight plays in plant growth.

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.

A high level discussion of the phototropic effect in plants. Discusses the basics, but quickly branches into a very high level discussion.

This is a site with links covering multiple areas of tree and plant study. Great illustrations and information.

The North Carolina Department of Agriculture explains soil testing, taking a soil sample, and analyzing the results.

This comprehensive lesson provides information on the functions of stems, control of stem growth, structure of stems, axillary buds and branching, and modified stems.

Gravitropism (or geotropism) is how a plant responds to gravity. Roots have a positive reaction to gravity and they grow toward it. Stems have a negative reaction and grow away from gravity. Learn more about what happens inside a plant...

A concise review of how plants sense environmental conditions and respond to stimuli. Good illustrations and a quiz enhance learning along with links to additional information.

A good overview of the development of plants. Includes a section on the dormancy of plants that covers the basics.