Biology

Learn about two taxonomy systems that scientists use to classify the life around us.

Radiocarbon dating is a method of radiometric dating. Learn how archaeologists use carbon isotopes to find the age of organic materials at archaeological sites.

When you cut your finger, your immune system kicks in to protect you from pathogens.

Viruses can make you feel awful! This article explains how feeling bad might be your immune system’s way of helping you heal.

Cloning makes it possible to bring extinct species back to life. But is that a good idea?

What's tasty, abundant and high in protein and vitamins? Bugs! Bugs feed about 2 billion people each day. They also hold promise for food security and sustainability.

Astronauts can experience bone loss in space. To understand why, you need to know a bit about how bones are formed and maintained in your body.

Using stethoscopes, doctors can use sound waves to detect various health issues. Learn how this device has evolved since it was invented in 1816!

10 images of some cold-blooded vertebrates such as snakes, lizards and alligators typically having dry, scaly skin

Students develop and apply the skills of observing, comparing, contrasting, sorting and classifying, to investigate how seeds move from place to place.

5 images representing the senses of hearing, seeing, smelling, tasting and touching

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.

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