Great activity for Newton's Third Law. Just a quick and easy lab sheet for the classic balloon rocket lab for 8th grade physical science but also appropriate for high school physics and conceptual physics or for 5th-7th graders that have more than one class period. Includes materials needed, procedure and some questions for students to answer. I put two of these to a page so that paper can be saved. Just a simple lab - but one of the year's favorites!!