This project we worked in groups of two to make cars powered by mousetraps. my partner and I had our car built really fast because it was made of Legos and so it was easy. the hard part was getting the mouse trap to spin the axle. Also it was hard working with my partner mostly because he didn't work too much when working on the sheets but he did work and get stuff done. the second problem was our mousetrap. it broke often and we had to be very carful with it. overall we made a nice car that we cut in half so each of us could have it.