Simple Machines
More simple machines
Complex Machines
Amazing Inventions
More amazing inventions
100

This is used for lifting and lowering objects.

A pulley

100

This is used for transport.

A wheel

100

These are created when you put two or more simple machines together.

Complex machines

100

This invention created many new jobs in factories.

Steam engines

100

This transport helps us travel across oceans.

Aeroplane

200

This is used for joining two things together

A screw

200

A seesaw is an example of this.

A lever

200

This is what most complex machines use to function.

Electricity

200

This invention helps us get to other places very fast.

Modern trains

200

This technological revolution led to many new ways that we can talk to one another.

The communication revolution

300

This is used for moving objects up and down to different levels.

An inclined plane

300

A knife is an example of this.

A wedge

300

The pedals and handlebar on a bicycle are examples of these.

Levers

300

This invention led to the transport revolution.

Steam trains

300

This invention helped us communicate in morse code.

The telegraph

400

This is used for pushing objects up and down.

A lever

400

A slide is an example of this.

An inclined plane

400

The gears and chain on a bicycle are examples of this.

A pulley

400

This was the main way that we traveled before we had cars.

Horse and carriage

400

This helps us speak to people who are far away.

The telephone
500

This is used for cutting and pushing things apart.

A wedge

500

This has wheels and axles AND a pulley!

A bicycle

500
When the hub spins, the bicycle moves using these.

Wheels and axles

500

This helps us travel all by ourselves.

Car

500

This invention is a phone AND a computer.

A smartphone

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