MACHINES. Machines 2.jpgSIMPLE MACHINES AND THEIR USES.

Gap-fill exercise (by Juan Luis Serrano Pedrosa).

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!

USE THESE WORDS.

pushes
teeth
move
machine
Gears
This machine is a wheel.
Wheel.png

have around the edges.
This helps things . The
teeth of one fit in between the teeth of another. When one
moves, it the other to move in an opposite
direction.