Fossil fuels, upon which we now depend almost exclusively, are finite resources. Because the environmental problems inherent in large scale fossil fuel consumption are increasingly apparent, the reality of developing alternative energy sources must be faced. Solar energy is the obvious solution to the problem. It is a renewable, clean source that is infinite in supply. The purpose of this activity package is to enable students to discover the potential of the sun as an energy source. The activities, presented in eight units, are uniformly designed to incorporate the scientific method (posing a question and answering it through experimentation). The package is organized to include biological and physical science aspects of solar energy. The Seminole County science curriculum is covered by these two segments. The degree of difficulty varies in activities and in some instances a concept is presented twice, first in a simple format and then in a more complex framework. Activities/Experiments in the units focus on: nature of solar energy; solar collectors; concentrating solar energy; passive solar energy; solar stills; solar cells; and understanding bioenergy. The last unit contains additional energy activities. Materials needed, procedures, and questions are provided for each activity. (Author/JN)