Let's make musical instruments.
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 find solutions to the global environmental issues!
Simple, straightforward information about the coronavirus epidemic.
Learn about the harmful effects of smoking.
“Health” and “illness” refer to two opposite states of the body. This lesson is about these states.
There are plenty of weeds and herbs on fields, agricultural areas and even in carefully tended gardens.
In this lesson, you can get to know some interesting facts about flows of fluids and gases.
Learn about the deer and the wild boar, two large animals that inhabit temperate deciduous forests.
This lesson presents the harmful effects of addictions on the human body.
In summer, meadows are full of noisy bugs. Like always, if there are a lot of bugs, there will be a lot of animals feeding on them as well.
Albert Einstein was one of the most acknowledged and best-known scientists of the 20th century. Do you know what discoveries he made?
In this lesson, you will learn about buoyancy and the conditions of floating for objects.
A lesson about the basics of first aid.
Get to know some of the plants that are grown in agricultural fields.