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Excavators are big machines that are used to dig holes and move earth, and this model uses the same principles as those used in real situations, except you use water instead of hydraulic fluid. There are many types of excavators and this kit uses a first and third class lever to make the arm and shovel move. We think it provides and excellent example of how we use technology to dig things up. Great for kids to learn about hydraulics, levers and simple machines, and to finish small excavating projects. Simple to build in less than an hour, you need only a pair of scissors to make this fun and functional model. Best of all: no batteries required! GREAT FOR STEM PROGRAMS!
· Easy instructions, suitable for beginner model makers.
· All pieces pre-cut and ready to assemble (glue included!)
· Stands 30 cm high (12") when complete.
$17 one set/ $120 for 10 sets
Great for STEM programs!