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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
"Join the LEGO® minifigures on the move with mega machines. See giant construction machines, and huge machines carrying things everywhere, even into space" --
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
