![Image © TLFurrer, iStockPhoto.com](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/6675.jpg?itok=rmr9LK-v)
Are Microbes Your Friend or Foe?
STEM Explained
Microbes are everywhere, even in your digestive tract. Some of these microbes are helpful, and some aren’t.
![Birds flying near a wind farm](/sites/default/files/styles/resource_card_image_360x300_/public/2019-10/Birds_flying_near_a_wind_farm.jpg?itok=q2nkSzDU)
Are wind farms a threat to wildlife?
STEM Explained
Wind power is a growing source of electricity generation. But wind projects often affect local wildlife populations, and researchers are using environmental monitoring techniques to alleviate some of these impacts.
![Teenage boys arm wrestling at school](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/teenage-boys-arm-wrestling.jpg?itok=FeHUO_WV)
Arm Wrestling and Torque
STEM Explained
Arm wrestling isn’t just a test of strength. It’s also a test of how well you understand torque.
![Billiard balls and a cue stick on a felt-covered table (PIRO4D, Pixabay)](/sites/default/files/styles/resource_card_image_360x300_/public/2020-03/Billiard_balls_and_stick.jpg?itok=eHUZkzLE)
Billiards and Collisions
STEM Explained
The game of billiards shows the principles of collisions, momentum & impulse, and kinetics at work!
![heavy metal band](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Heavy_metal_band_0.jpg?itok=-Zc4rYXH)
A Taste of Heavy Metal
STEM Explained
Heavy metal is a term for some toxic chemical elements. They can cause problems like bioaccumulation, but are useful in nuclear medicine and medical imaging.
![Container ship in St. John’s harbor, Newfoundland, Canada](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Container_ship_St._John%27s_NL.jpg?itok=2paJF3ET)
Why do Ships Float?
STEM Explained
Have you ever been on a ship and wondered how you’re staying afloat? The answer is buoyancy!
![Opening can of pop](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Opening_can_soda_pop.png?itok=zJDIkoIl)
The Chemistry of Pop
STEM Explained
There’s a lot of cool chemistry in a can of pop! Learn how solubility, chemical equilibrium, acids & bases and gas laws work in some of your favourite drinks.
![3.7 V lithium-ion battery](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Lithium-ion_battery.jpg?itok=aIXK2bLA)
How does a lithium-Ion battery work?
STEM Explained
Learn about the electrochemistry in the batteries that power many of the devices you use every day.
![Close-up of an amethyst geode](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/geode_close-up.jpg?itok=e0eo8bjg)
What is a Crystal?
STEM Explained
Learn what makes a crystal a crystal.