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What is in the shrubs?

This lesson presents the European garden spider and the castor bean tick, two species...

Under pressure

In this lesson, you will find answers to questions about the pressure of solids, liquids...

10 things to know about the human brain

Learn interesting facts about the structure and function of the human brain.

Nuclear fission

A lesson about nuclear transformations and their consequences.

Romanesque art

Romanesque art was a style of medieval art based on classic Roman art.

Gothic art

Gothic art was a style of medieval art that developed in France.

The theory of relativity

The theory of relativity explained like you've never seen before.

Cold or hot?

In this lesson, we try to find answers to questions about temperature.

I study at home: Waterfront plants and their uses

In this lesson, you will learn about waterfront plants and what they can be used for.

Do you have enough energy?

In the lesson, you will learn how many minutes of running uses up the energy that a...

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