Why do days and nights alternate?

The alternation of day and night is caused by the Earth’s rotation around its axis.

Related extras

What makes a locality a town?

A town provides services that do not only meet the needs of its own population. Its scope of...

The formation of precipitation

There is water vapour in the air all the time. If the air becomes saturated with it,...

Deep in the caves

The unique beauties of the karstic caves are called dripstones.

Tree rings

Have you ever thought about how old trees might be? You can determine their age by counting...

Water

Water is one of the most important substances on Earth. Let’s take a look at its characteristics!

How do rocks become soil?

Weathering plays an important role in soil formation.

The basics of firefighting

Accidents involving fire can happen unexpectedly, therefore it is important to know what to do...

The change of seasons

Seasons result from the orbit of the Earth around the Sun and the tilt of the Earth’s rotational...

Added to your cart.