STEM Explained

Plants need to exchange gases and water with their environment as part of photosynthesis. Some plant cells have evolved specifically for this purpose.

Canada has some amazing landforms. Learn how weathering, erosion and deposition shape landforms.

Hurricanes are a kind of tropical cyclone. But where do they come from? And why do they cause so much damage? This article will answer all your storm-related questions!

Acid rain is any precipitation that has an unusually low pH. It can be rain, snow, fog, etc. But what is a low pH and why is this a problem?

Tornadoes are a common extreme weather phenomenon in Canada. How are they formed? How can you stay safe? And what is a storm chaser?

Celiac disease is an autoimmune disorder. Gluten triggers an immune system response, seriously affecting nutrition.

What are your teeth made up of? What chemistry is at work in your mouth? Why do some people get cavities even if they brush regularly?

Different members of a species can have different traits. You can see this in a species found at your local pet store - guppies!

Bernoulli’s equation is key to understanding why curveballs curve.

Every ice rink is an example of molecular bonding and gas laws at work!

Why does drinking too much alcohol make people feel so bad? Read about four theories.

Scientists have accumulated so much evidence in the theory of evolution that it is one of the most widely-accepted theories in science.

We all know someone who has been affected by cancer. What causes cancer? Why is it getting more common?

Ever wonder how fish survive in the cold waters of the Arctic and Antarctic? It’s partly because of a brilliant evolutionary adaptation.

Meteorologists use computer models to predict the weather. Learn why, despite advances in computer science, meteorologists still get it wrong sometimes.