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Common field crops

Get to know some of the plants that are grown in agricultural fields.

Weed or herb?

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

Insects in the forest

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

Invisible animals: worms

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

How does the human body change?

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

The material and energy flow of households

Apartments are like living organisms, there is a constant exchange of energy and materials between apartments and the environment.

Is the buoyant force with you?

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

Mountains of fire

Learn about the inner forces of Earth and the formation of volcanoes.

Decrease the amount of waste

Humans produce an increasing amount of waste. A change in our lifestyle could significantly reduce the production of household waste.

The restless Earth

How are earthquakes formed? What keeps tectonic plates in motion?

Am I healthy? Can I be ill?

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

From root to leaf

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

What happens on the surface?

Learn how fluid molecules interact with each other and their environment.

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