From comparing potential and kinetic energy to predicting how energy changes when objects collide, our engaging kit supports Next Generation Science Standards* for fourth grade! The kit includes 4 double-sided, 8 1/2" x 11" Investigation cards that encourage critical and scientific thinking, 4 Connection cards for making real-world connections, a wooden cart, 2 ramps, an open box, a bulb holder and 3 bulbs, a battery holder, 2 wires, 14 wooden blocks, and a fan and fan stand. Plus, you get a guide with detailed lesson plans, investigation tips, possible solutions and much more!