STEM Explained

In planetary science, astronomers have found planets that orbit other stars, just like Earth orbits the Sun. Some of them might even be able to support life.

A study on bird feeders and beak sizes shows how an everyday human activity can affect the evolution of another species.

Many doctors prescribe antibiotics to cure infections. But should they be prescribing viruses instead?

The ocean is full of very small but very useful creatures called microbes. Without them, none of the sea plants or animals you’ve seen would exist!

Learn about the measles virus, its impact and vaccination for prevention of the disease.

Errors during meiosis can alter the number of chromosomes in cells and lead to genetic disorders.

Learn about the biochemistry of cooking meringue.

In a few decades, some of the electricity you use might be generated by bacteria.

In April 2016, Let’s Talk Science volunteer Daniel Tarade donated stem cells to help a person who needed a stem cell transplant to survive. Learn what stem cells are, how and why people donate, and what Daniel’s experience was like.

Sodium is a useful chemical element. You consume it as table salt regularly. Learn about salt mining, sodium uses, and what problems too much sodium can cause.

Many people believe that hookah smoking is safer than cigarette smoking. But in fact, hookah smoking can be even more harmful to your health!

Did you know that too much carbon dioxide in the classroom can affect your body, and even your grades?

Learn how e-cigarettes and other vaping products work, and why scientists and health professionals have concerns about their safety.

Drones are very cool and very useful aircraft! This resource explains how drones stay in flight, and outlines some of their uses.

Learn about the chemistry of ice skating rinks, and the technology & engineering that lets us enjoy them indoors as well as outside.