Lightning

Lightning is a sudden electrostatic discharge accompanied by a sound known as thunder.

Related extras

The weather forecast

The weather can be forecast with different meteorological instruments.

Tropical cyclones

Cyclones are large areas of swirling air with clouds and precipitation being formed inside.

Folding (advanced)

Lateral compressive forces cause rocks to form folds. This is how fold mountains are formed.

Types of lakes

Still waters take various forms on the planet. Let’s take a look at how we can group them.

Natural gas and petroleum

Natural gas and petroleum are among the most important sources of energy and raw materials today.

Fascinating atmospheric phenomena

We can often observe spectacular atmospheric phenomena. Let's see how some of these are formed.

Exogenic forces

The surface of the Earth has been formed into its present state both by external and internal...

Coal formation

This video presents the different stages of coal formation.

Added to your cart.