![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.
![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!
![Planet and asteroid orbits around the Sun](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Planet_and_asteroid_orbits_around_Sun.png?itok=Vp9Ht9tN)
Orbital Mechanics
Backgrounders
This backgrounder helps explain the laws of Orbital Mechanics, including Newton’s Laws.
![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.
![Tim Wilkinson Plumber/Welder](/sites/default/files/styles/career_image/public/2019-07/tim.jpg?itok=PJzFmBUH)
Tim Wilkinson (Video)
Plumber/Welder, City Of Toronto
![ERIN GONZALES](/sites/default/files/styles/career_image/public/2019-07/erin.jpg?itok=rxVnCXfz)
Erin Gonzales (Video)
Baking Entrepreneur
![Schuyler Kahgee - Industrial Millwright Apprentice](/sites/default/files/styles/career_image/public/2019-08/Schuyler%20Kahgee_14.jpg?itok=s7AJ0u1V)
Schuyler Kahgee (Video)
Career Profiles
Industrial Millwright
![Kevin Hill - Regional Maintainer Forestry](/sites/default/files/styles/career_image/public/2019-08/Kevin%20Hill_14.jpg?itok=mgpmyDsR)
Kevin Hill (Video)
Regional Maintainer
![JENN GREEN | MAINTENANCE PLANNER & SCHEDULER JENN GREEN | MAINTENANCE PLANNER & SCHEDULER](/sites/default/files/styles/career_image/public/6739_2.jpg?itok=GlnVMWLE)
Jenn Green (Video)
Maintenance Planner & Scheduler
![Paul Prochilo - CEO, Simplicity Car Care](/sites/default/files/styles/career_image/public/2019-08/6704_17.jpg?itok=Z5533VQN)
Paul Prochilo (Video)
CEO
![TREVOR ROOTE | MECHANICAL MAINTAINER TREVOR ROOTE | MECHANICAL MAINTAINER](/sites/default/files/styles/career_image/public/trevor_2.jpg?itok=PFx7W6EY)
Trevor Roote (Video)
Career Profiles
Mechanical Maintainer