What do bicycles, doorknobs, and screwdrivers have in common? All of them use wheels and axles to...
Unser bisheriger Preis:ORGPRICE: 58,15 €
Of the six simple machines, the wheel and axle is probably the most recognized. But how does it h...
Unser bisheriger Preis:ORGPRICE: 49,98 €
What do flagpoles and some window blinds have in common? They use pulleys to perform work! Pulley...
Unser bisheriger Preis:ORGPRICE: 58,07 €
Do you know what a lever is? How can a lever help you? Through simple experiments and clear expla...
Unser bisheriger Preis:ORGPRICE: 49,85 €
What do hammers, wheelbarrows, and brooms have in common? All of them are levers! Levers are simp...
Unser bisheriger Preis:ORGPRICE: 58,15 €
What is work? You may think work is doing chores or going to a job, but you do work every time yo...
Unser bisheriger Preis:ORGPRICE: 49,68 €
What do a doorstop, a butter knife, and the front of a boat have in common? All of them are wedge...
Unser bisheriger Preis:ORGPRICE: 57,98 €
We''ve all seen screws, but how do they work? Why is it easier to screw something into somethi...
Unser bisheriger Preis:ORGPRICE: 32,42 €
What is an inclined plane? How do you use a wedge? Using easy-to-understand examples and fun-t...
Unser bisheriger Preis:ORGPRICE: 32,46 €
What do staircases, dump truck beds, and ramps have in common? All of them are inclined planes! I...
Unser bisheriger Preis:ORGPRICE: 57,73 €
What do jar tops and water-bottle lids have in common? Both of them are screws! Screws are simple...
Unser bisheriger Preis:ORGPRICE: 58,49 €
How does a pulley work? What is it? Colorful diagrams and fun-to-do experiments help you explo...
Unser bisheriger Preis:ORGPRICE: 32,42 €