A variety of fuels are evaluated for the amount of heat they liberate upon burning. This includes a discussion of how different criteria can influence the evaluation of what makes a "good" fuel.

This formative assessment item is used to uncover student ideas about solar radiation. Students will decide what they believe the sun provides to Earth. It is aligned to National Science Education Standards. Resources are provided to give additional information, as well as instructional suggestions.

Student pairs design and construct small, wind-powered sail cars using limited quantities of drinking straws, masking tape, paper and beads. Teams compete to see which sail car travels the farthest when pushed by the wind (simulated by the use of an electric fan). Students learn about wind and kinetic and renewable energy, and follow the steps of the engineering design process to imagine, create, test, evaluate and refine their sail cars. This activity is part of a unit in which multiple activities are brought together for an all-day school/multi-school concluding “engineering field day” competition.