Evaluate the effect of light on plants.

Evaluation should be made by conducting experiments, incorporating the scientific method, that may involve variables in

• light duration
• light intensity
• light quality (color).

Process/Skill Questions:

• What impact does light have on plants?
• Why can most plants not be grown in the dark?
• What role does light duration, intensity, and quality play in plant growth and development?
• What role do phytochromes play in seed germination, and the transition from vegetative to reproductive growth?
• Why is light quality important?
• When is there a need for a balanced light spectrum?
• What role does photoperiodism play in plant reproduction and growth?