Simple Machines

Simple machines are used to modify forces. Click here to see some examples

Wheel and Axle

Pulley

Lever

Inclined Plane

Energy

In this unit, we will learn about sources of energy

We can divide into Renewable and Non-Renewable Sources

Renewable Sources :

The Sun

Water

                                                   Here you can see how a damp works

Wind

Non-Renewable Sources:

Coal

Gas

Oil

Cars work with a form of energy that comes from oil.

The Universe

In this unit, we have studied the universe, how it works, the solar system, satellites, astronomers and more interesting things.

In the image above, we can see the planets orbiting around the sun, and some satellites spinning around their planets.

We have studied and explained how tides work, in the link below, there is an interesting and simple explanation.

Click here