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item# PP438


…mechanical power of liquid in motion—as they build their own hydraulic machines! Our kit includes 4 step-by-step activity booklets and…

grades: 3rd grade - 5th grade
ages: 8 years - 10 years
item# TT498


…to create 8 inspiring projects, like a catapult, helicopter and hydraulic lift car…then make their own one-of-a-kind creations. And, as…

grades: 1st grade - 6th grade
ages: 6 years - 11 years