This activity gets students engaged with the science fair process. They are provided unique detailed projects that require them to make a hypothesis, identify dependent and independent variables, and conduct (hypothetical) experiments to solve. They will have to analyze the problem you provide them with, and use critical thinking/science fair skills to come up with a way to solve. All you have to do is facilitate the process. The problems are detailed and very engaging for your students. There are 6 problems in all.