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.
This lesson presents the development of human speech and the structure and functioning of the organs of speech.
In this lesson you will learn about the basics of speech perception and language acquisition.
This lesson introduces some basic ideas about sound.
Let's make musical instruments.
Simple, straightforward information about the coronavirus epidemic.
Let's find solutions to the global environmental issues!
In this project, you will perform experiments with water.
Learn about the concepts of floor plan, map, and map scale.
A digital lesson about the colourful culture of the Inca Empire.
In this lesson, you will learn how we can find our way around.
A lesson about the changes that take place in our bodies throughout our lifetime.
In the body, substances are continiuously absorbed and released.
Numerous insects live on tree trunks, in the foliage and on the ground. Let's learn about some species.
Let's learn about the various types of worms by looking at the characteristics of typical species.
A lesson about the various types of maps.
In this lesson, you will learn how mountains are formed.
A lesson about the landforms and continents of Earth.