In this activity, students use the engineer design challenge to build and revise mouse trap cars, collecting data and reflecting after each design revision. The process helps students consider the process of designing, reflecting, problem-solving, revising, etc. as engineers do as they innovate, design and create. Students collect data - time and distance - and calculate their results. They also graph their results and answer reflection questions. The activity helps students build both scientific inquiry and engineer design skills in a hands-on, engaging, challenging, activity.
The activity could be aligned to a forces and motion unit or an engineer-design unit.
The activity sheet does not include instructions on building - I've always had students look up picture and video instructions that seem to work better than worksheet instructions.