![Hurricane Katrina as seen from space](/sites/default/files/styles/resource_card_image_360x300_/public/2019-11/Hurricane_Katrina_seen_from_space.jpg?itok=zKdK1Yo8)
Where Do Hurricanes Come From?
STEM Explained
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!
![Cartoon leaf holding an umbrella over baby plant](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/cartoon_acid_rain.jpg?itok=J4BMIwgR)
What is Acid Rain?
STEM Explained
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?
![dangerous tornado approaching wind turbine](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/dangerous-tornado-with-wind-turbine.jpg?itok=986v4qAD)
What is a Tornado?
STEM Explained
Tornadoes are a common extreme weather phenomenon in Canada. How are they formed? How can you stay safe? And what is a storm chaser?
![Bread and wheat with a warning sign](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/gluten-intolerance-with-bread-and-wheat.jpg?itok=Ytq99uNA)
Celiac Disease: When You Really Need to Stay Gluten-Free
STEM Explained
Celiac disease is an autoimmune disorder. Gluten triggers an immune system response, seriously affecting nutrition.
![Thundersnow near a cabin on a hillside](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Thundersnow_near_cabin_on_hillside.jpg?itok=IugkyK5e)
Thundersnow: winter thunderstorms
STEM Explained
When thunder and lightning occur but the main form of precipitation is snow, not rain, it’s called thundersnow.
![Cartoon of people cleaning teeth](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Cartoon_dentists_cleaning_a_tooth.jpg?itok=vK4Ow00y)
How can chemistry help you take care of your teeth?
STEM Explained
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?
![Weather Map](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Weather_map.jpg?itok=7rFQrdOS)
Why is the weather so hard to predict?
STEM Explained
Meteorologists use computer models to predict the weather. Learn why, despite advances in computer science, meteorologists still get it wrong sometimes.
![Doctor pointing to a knee x-ray](/sites/default/files/styles/resource_card_image_360x300_/public/2019-12/doctor_pointing_to_xray.jpg?itok=56sDaZM9)
Why a Trip to Outer Space Could Be Bad for Your Bones
STEM Explained
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.
![guppies](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Guppies_0.jpg?itok=GxqR4Z2f)
Why are Guppies so Diverse?
STEM Explained
Different members of a species can have different traits. You can see this in a species found at your local pet store - guppies!
![Pitcher holding a baseball](/sites/default/files/styles/resource_card_image_360x300_/public/2020-02/pitcher-holding-a-baseball.jpg?itok=Q-P2jehX)
Why Do Curveballs Curve?
STEM Explained
Bernoulli’s equation is key to understanding why curveballs curve.
![People playing ice hockey](/sites/default/files/styles/resource_card_image_360x300_/public/2020-06/people_playing_hockey.png?itok=pPcyU2JG)
Why Do Ice Rinks Stay Frozen?
STEM Explained
Every ice rink is an example of molecular bonding and gas laws at work!
![Suffering from a hangover](/sites/default/files/styles/resource_card_image_360x300_/public/2019-11/suffering_from_a_hangover.jpg?itok=6Wjz2McS)
Why Do People Get Hangovers?
STEM Explained
Why does drinking too much alcohol make people feel so bad? Read about four theories.
![fossil plants and animals](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/fossil_plants_and_animals.jpg?itok=jdZrg_LM)
Why Scientists Believe in Evolution
STEM Explained
Scientists have accumulated so much evidence in the theory of evolution that it is one of the most widely-accepted theories in science.
![People with cancer and their caregivers](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/People_with_cancer.jpg?itok=kpFHke8P)
Why Do So Many People Get Cancer?
STEM Explained
We all know someone who has been affected by cancer. What causes cancer? Why is it getting more common?
![Arctic pack ice](/sites/default/files/styles/resource_card_image_360x300_/public/2021-03/arctic_ice_pack.jpg?itok=-rJJdc-Q)
Why Don't Fish Freeze in Cold Arctic Waters?
STEM Explained
Ever wonder how fish survive in the cold waters of the Arctic and Antarctic? It’s partly because of a brilliant evolutionary adaptation.