Sound waves all around us • Part 2

In this lesson you will learn more about how sound propagates.

Do storks really deliver babies?

This lesson presents everything related to human reproduction.

What do mixtures consist of?

This lesson presents different types of mixtures and how the substances in the mixtures can be separated.

What do we know about teeth?

The lesson introduces you to various types of teeth and their functions.

Let's dive!

In this lesson you can learn about the flora and fauna of seas.

Let’s get to know the sources of sound!

Let's use musical instruments and our vocal cords as sources of sound.

Why do we cry when chopping onions?

A lesson about the anatomy and development of onions.


Breaking news: Howard Carter discovered Tutankhamun's tomb!

How fast are your reflexes?

The lesson introduces you to our innate and learnt reflexes.

The Age of Discovery

Let's get on board with legendary navigators!

What can the Sun's rays be used for?

This lesson presents how solar energy can be utilised.

Which devices use infrared light?

You can learn about the use of infrared radiation in our everyday lives.

What is infrared radiation?

In this lesson you can learn about infrared radiation.

The Cartesian and the polar coordinate system

Practise how to define a specific location using coordinate systems.

Does wind have energy?

This lesson presents the old and modern ways of utilising wind energy.

Do lichens damage trees?

In this lesson you will familiarise yourselves with special organisms, that is lichens.

Become a forensic anthropologist

Find out what types of bones there are and what anthropologists do!

A Journey to the Centre of Earth

This lesson presents the internal structure of Earth, the geospheres and their general properties.

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