From root to leaf

Let's follow the path of water in plants from the roots to the leaves

Is the buoyant force with you?

In this lesson, you will learn about buoyancy and the conditions of floating for objects.

Decrease the amount of waste

Humans produce an increasing amount of waste. A change in our lifestyle could...

The material and energy flow of households

Apartments are like living organisms, there is a constant exchange of energy and...

What is metabolism?

In the body, substances are continiuously absorbed and released.

Insects in the forest

Numerous insects live on tree trunks, in the foliage and on the ground. Let's learn about...

How does the human body change?

A lesson about the changes that take place in our bodies throughout our lifetime.

Invisible animals: worms

Let's learn about the various types of worms by looking at the characteristics of typical...

Legends and facts – Who was Albert Einstein?

Albert Einstein’s life is surrounded by numerous legends, but the facts about him are...

Weed or herb?

There are plenty of weeds and herbs on fields, agricultural areas and even in carefully...

Am I healthy? Can I be ill?

“Health” and “illness” refer to two opposite states of the body. This lesson is about...

Does wind have energy?

This lesson presents the old and modern ways of utilising wind energy.

A Journey to the Centre of Earth

This lesson presents the internal structure of Earth, the geospheres and their general...

Let's measure time!

This lesson presents timekeeping devices and the types and units of time measurement.

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