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How do machines work? Kids will have a blast constructing a mini-seesaw to illustrate the way a lever operates or creating their very own pulley from an empty spool, string, ribbon, pails, pennies, a broom, and two chairs. They’ll find out why they can’t put in a screw using only their fingers and examine the different parts of compound machines. In another experiment, a child’s bicycle becomes a laboratory for understanding whether wheels have to be smooth to run. A good time will be had by all.
How do machines work? Kids will have a blast constructing a mini-seesaw to illustrate the way a lever operates or creating their very own pulley from an empty s
Discover the largest, fastest and weirdest vehicles in this great new series. With fantastic action photographs, each title details a different type of vehicle
How big is the world’s longest train? Which plane flies faster than the speed of sound? How do rockets work? Strap yourself in and get ready to discover the a
From their quirky origins to their contemporary role as centers of advocacy, a look at the secret lives of science museums—past, present, and future. Science