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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!
Learn about animals inhabiting rivers, lakes and their shorelines.
Learn interesting facts about the structure and function of the human brain.
Romanesque art was a style of medieval art based on classic Roman art.
How to reduce energy use at home
A lesson about the various types of physical interactions.
A lesson about nuclear transformations and their consequences.
Gothic art was a style of medieval art that developed in France.
This lesson presents the European garden spider and the castor bean tick, two species that live at the shrub level of temperate forests.
In this lesson, we try to find answers to questions about temperature.
Over millions of years, even mountains are transformed.
Learn about the use of bees and honey