Am I healthy? Can I be ill?

Az „egészség” és a „betegség” a szervezet két ellentétes állapotát fejezi ki, ezekről az...

Weed or herb?

A réteken, szántóföldeken és a gondosan ápolt kertekben is rengeteg növény telepedhet meg.

Legends and facts – Who was Albert Einstein?

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

How does the human body change?

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

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.

From root to leaf

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

Invisible animals: worms

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

Insects in the forest

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

The human urinary system

This lesson presents the structure and functioning of the human urinary system.

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