This unit gives students multiple problems and experiments and focuses on how they test and evaluate their solutions. In the Bubbling Plants Activity, students experiment with different amounts of light on water plants and the impact on photosynthesis. For Waterproof the Roof, students use various materials to design and create a roof that will withstand a heavy downpour. Students experiment with basic programming by writing a set of directions to lead a blindfolded classmate through obstacles in the Programming a Friend activity. They use iterative testing to modify the program each time they test it.

Time: 3-6 Hours