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This lesson helps you understand the process of hearing.
Find out interesting pieces of information about the communication of animals.
Let's make musical instruments.
This lesson introduces some basic ideas about sound.
In this lesson you will learn about the basics of speech perception and language acquisition.
This lesson presents the development of human speech and the structure and functioning of the organs of speech.
Noise surrounds us everywhere, but it can be harmful. Let's see how.
A lesson about the benefits and limitations of genetic engineering.
Simple, straightforward information about the coronavirus epidemic.
Let's find solutions to the global environmental issues!
In the lesson, you will learn how many minutes of running uses up the energy that a chocolate bar gives you.
In this lesson, you will find answers to questions about the pressure of solids, liquids and gases.
A summary of the physics of waves for high school students.
In this lesson, you can learn about the famous Russian writer.
In this lesson, you will learn about the history of food in art and the Surrealist movement.
In this lesson, you can learn about various herbs and spices.
The Renaissance, which originated in Italy, was inspired by Ancient Greek and Roman art.
Az energia mint mennyiség nagyon sok formában fordul elő, és az egyes energiafajták különféle változások során egymásba is alakulnak.
The theory of relativity explained like you've never seen before.
How to reduce energy use at home