Topic – Screws

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Read the Following Selection

Read about screws, or click on the play button below to listen aloud.


A screw is an inclined plane twisted around a rod. Screws can join, cut, lift, or push. Screws make work easier. They are simple machines.

Where Screws Are Used

Builders attach wood with screws.

Jars have lids that screw on. The screw
shape holds the lid tight on the jar.

A jack lifts a car so you can change
a tire. The jack uses a large screw.

A twirling piano stool uses a screw.
The seat twirls up and down.

Drill bits are shaped like screws
to make holes in materials such as wood.

Now, show what you know!

Complete some questions about the reading selection by clicking “Begin Questions” below.