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This lesson presents the development of human speech and the structure and functioning of...
Let's make musical instruments.
Find out interesting pieces of information about the communication of animals.
Noise surrounds us everywhere, but it can be harmful. Let's see how.
This lesson helps you understand the process of hearing.
In this lesson you will learn about the basics of speech perception and language acquisition.
This lesson introduces some basic ideas about sound.
This lesson introduces you to the outer planets of the Solar System, that is the giant...
In this lesson you will learn about the presence of humans in space in the past, present...
This lesson presents interesting facts about reptiles and their life.
This lesson presents the most important milestones in the history of aviation.
This lesson presents the different types of forests and their layers.
This lesson presents the anatomy of the eye, the mechanism of vision, and common vision...
The lesson introduces you to various types of teeth and their functions.
The lesson introduces you to the features of Tyrannosaurus rex.
This lesson presents the old and modern ways of utilising wind energy.
Find out interesting facts about the anatomy of amphibians and their vital processes.
This lesson encourages the use of the Global Positioning System.
In this lesson you will learn about the mysterious world of alchimists.
Let's find out interesting facts about the flora and fauna of polar regions and the...