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Цифрлық сабақтар
How did humans conquer the air?
This lesson presents the most important milestones in the history of aviation.
The anatomy of the heart (intermediate)
This lesson introduces the position and anatomy of the heart, as well as the blood flow...
Is glass a liquid or a solid?
A lesson about the special properties of glass, the process of glassmaking and the...
How can we group chemical reactions?
The experiments in this lesson will introduce you to the various types of chemical reactions.
How do birds fly? Part 2
Let's examine the anatomy of birds and their vital processes from the point of view of...
Are poison dart frogs poisonous?
Find out interesting facts about the anatomy of amphibians and their vital processes.
What can positioning systems be used for?
This lesson encourages the use of the Global Positioning System.
Activity? Radio? Radioactivity!
This lesson presents the discovery of radioactive radiation and its positive and negative...
Where will we meet?
Let's find out how many pieces of information are necessary for specifying a location.
A Journey to the Centre of Earth
This lesson presents the internal structure of Earth, the geospheres and their general...
Let's measure time!
This lesson presents timekeeping devices and the types and units of time measurement.
Which came first, the feather or the bird?
This lesson presents which animals developed feathers during the course of evolution.
Become a forensic anthropologist
Find out what types of bones there are and what anthropologists do!
Do lichens damage trees?
In this lesson you will familiarise yourselves with special organisms, that is lichens.
Let's get to know the faces of forests!
In this lesson you will find out where deciduous forests are located on the Earth and...