Learn the fine structure of the lungs.

Lungs and Airways

Can you name some fuels that can be burned to generate energy? Coal, oil, and gas are probably the first that comes to mind. In this video, we’re going to look at another special type: biofuels. The fossil fuels coal, oil, and gas can...

The video discusses the concept of the rate of a chemical reaction and how it can be calculated and expressed in various ways. The examples used in the video include measuring the amount of product formed or reactant used up over a...

It explains the need for intake of nitrogen in plants. It also describes methods of nitrogen nutrition such as biological nitrogen fixation, fertilisers and manures.

This video explains the process of cellular respiration and the different ways in which respiration can take place. It discusses aerobic and anaerobic respiration, along with their word equations and balanced symbol equations. The video...

In this video, we explore the significance of trees and their role in our environment. We learn about the characteristics of trees, their ability to produce oxygen, provide food and shelter, and contribute to the overall health of our...

We're putting more and more carbon dioxide and other gases into the atmosphere, which are trapping the sun's energy, and lo and behold, our planet is heating up in response. To fix this, we could cut carbon dioxide emissions, but that's...

Do you want to know how to calculate the volume of gases? This chemistry video will show you how to do it with simple real world examples. If you know two of these three, you can work out the third: mass in grams, number of moles and...

We learned about ideal gases, as well as kinetic molecular theory, which explains the laws that govern ideal gases. But some of the postulates of this theory won't always hold true. When a gas is highly pressurized and/or very cold, it...

This video discusses the rate of photosynthesis. The video explores the three key limiting factors to photosynthesis: light intensity, temperature and carbon dioxide concentration. The video also highlights the importance of chlorophyll....

This video is answering the question of how do trees help climate change.

A new study from NASA shows that it may not be possible to make Mars habitable for humans using current technology.

In this live-action program viewers will learn that during every moment of your life you are breathing in air and exhaling carbon dioxide through a process called gaseous exchange and it takes place in the Alveoli.

Students will...

What happens when you pour liquid nitrogen on a flame? What about when you blow on the flame with a cup in the way? Try these five unusual ways to extinguish a candle. Pour out the flame with CO2. Cut off the oxygen supply to the flame...

This video discusses the various tests that chemists use to identify different gases like hydrogen, oxygen, carbon dioxide, chlorine, and ammonia. The presenter demonstrates each test using simple equipment like test tubes, splints, and...