I've always struggled with "at home science experiments". This activity breaks it down into an easy to follow form for both parents and students. After modeling in class with simple experiments, I allow the students to try. I suggest approving each student's idea with you before giving the go ahead. I assign one of these each quarter and the kids really look forward to them. It's a great way to fit in the science inquiry and investigations standards. Comes with easy to use, quick scoring rubric.