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The physics of submarines

This lesson presents the concepts of density and buoyancy through...

How does soil form?

This lesson presents soil formation, the components of soil, and...

And yet it moves Part 1

This lesson provides evidence of Earth's rotation and presents its...

Is noise harmful?

Noise surrounds us everywhere, but it can be harmful. Let's see how.

Let's go on a safari!

In this lesson you will find out where savannahs are located on...

Where does water come from?

Let's follow the journey of water and find out how it gets into...

Time

In this lesson you will familiarise yourselves with the concept of...

Vitamins

In this lesson you will find information about the discovery and...

The Doppler effect

This lesson helps to understand the Doppler effect.

Saliva, a versatile body fluid

In this lesson you will learn more about this special liquid.

Do you understand what I am telling you?

In this lesson you will learn about the basics of speech...

How can humans speak?

This lesson presents the development of human speech and the...

How do we hear?

This lesson helps you understand the process of hearing.

Can we understand the language of animals?

Find out interesting pieces of information about the communication...

Is water essential for life?

Water is one of the most important substances on Earth. Let's...

Why was World War I so horrible?

Этот урок представляет вооружения, которые использовались в Первой...

The secret life of newborns

Learn more about the early stages of human development with this...

The industrial revolution and its consequences

The lesson makes a thorough presentation of the period of the...

How can wind energy be used?

This lesson presents how wind energy can be utilised.

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