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How did we conquer space?

This lesson presents the history of human space flight.

How can wind energy be used?

This lesson presents how wind energy can be utilised.

Are there purple cows?

Cattle is a large, domesticated vertebrate. Let's learn more about it.

The industrial revolution and its consequences

The lesson makes a thorough presentation of the period of the Industrial Revolution and of its social and economic implications.

Can chickens fly?

A lesson about the anatomy and lifestyle of chickens.

The secret life of newborns

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

User manual

A guide about the meaning of icons found in digital lessons and the possibilities of using them.

The pharaohs of Ancient Egypt

The ancient Egyptian empire was led by pharaohs, considered sons of the Sun god.

Why was World War I so horrible?

This lesson presents the weapons of World War I.

Saliva, a versatile body fluid

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

The Doppler effect

This lesson helps to understand the Doppler effect.


In this lesson you will find information about the discovery and classification of vitamins as well as about illnesses caused by vitamin deficiency.


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

What size are bacteria?

This lesson presents the structure and classification of bacteria and the role they play in our lives.

Let's go on a safari!

In this lesson you will find out where savannahs are located on Earth and will learn about their rich fauna and flora.

How to feed your T-rex

The lesson introduces you to the features of Tyrannosaurus rex.

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