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2443
Energy exists in many different forms. Each form can be converted or changed into the other forms.
A digital lesson that gives an overview of vibrations for high-school students.
Near the waterfront, vegetation is greener and more abundant than in the centre of the lakes.
Environmental conditions, and therefore, vegetation along the shore are different from those in the water.
How do plane and curved mirrors form images? You can learn about it in this lesson.
How do optical devices magnify the image of a distant or a very close object?
A lesson about the changes in the shape and function of windows from ancient times to the present day.
The muddy bottom of freshwater bodies provides home to numerous species.
Interesting facts about your intestinal system
A lesson about microorganisms commonly found in lakes, rivers and streams.
Learn about the golden ratio and about two geometry-based art styles.
Like most bird species, the great spotted woodpecker and the great tit live in the foliage of trees and shrubs.
How big are atomic nuclei and what do we know about them?
A lesson about Easter traditions throughout the world.
Learn how electromagnetic waves are generated and where we can encounter them.
What is the mysterious interaction that holds the components of a nucleus tightly together?
Let's see what happens when waves propagate from one medium to another.
Interference is one of the most spectacular wave phenomena.
Learn about the importance of the diffraction of waves in our everyday life.
Almost every musical instrument works based on the phenomenon of standing waves. What should you know about these waves?
In quantum mechanics, regularity and uncertainty are present at the same time. How is that possible?