Fun for Future Engineers -- Hands-on construction and creation of four simple machines is a fun introduction into building and the mechanics of hydraulic machines. -- Using all pre-cut pieces, glue, and simple instructions, you can make a Platform Lifter, Scissor Lift, Cherry Picker, and Excavator. -- The Platform Lifter provides an excellent example of how we use technology to move people and materials around. -- The Scissor Lift uses the same principles and construction that is common to industrial scissor lifters. -- The Cherry Picker is similar to the ones often mounted on truck beds to steadily lift people and parts to great heights. -- The Excavator kit uses first and third class lever like the ones used in trucks at most construction sites. -- Each working model uses water instead of hydraulic fluid. No batteries are needed to power these models. -- Recommended for ages 8 and up.