![General Motors Place](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/General_Motors_Arena_Vancouver_BC.jpg?itok=NGrlYeqn)
Keeping the Rink on Ice
STEM Explained
Learn about the chemistry of ice skating rinks, and the technology & engineering that lets us enjoy them indoors as well as outside.
![Lighting inside the Destiny Laboratory Module](/sites/default/files/styles/resource_card_image_360x300_/public/2019-12/Lighting_Destiny_Module_Sleep.jpg?itok=0SQn_Sm7)
Light on Earth and on the International Space Station
Backgrounders
This backgrounder explains what light is, how it is measured, and how it affects people on Earth and astronauts on board the International Space Station.
![How much of an iceberg is on top of water?](/sites/default/files/2019-08/how-much-of-an-iceberg-is-on-top-of-water.jpg)
How much of an iceberg is on top of water?
Hands-on Activities
In this hands on activity find out just how much of an iceberg is below the surface. It might surprise you!
![Construction vehicles use hydraulics. Image © Djahan, iStockPhoto.com](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Construction%20vehicles%20use%20hydraulics.jpg?itok=9wlkKEIz)
Hydraulics 101
STEM Explained
Hydraulics power many of the large machines you see around you.
![How does sound travel?](/sites/default/files/2019-08/how-does-sound-travel.jpg)
How does sound travel?
Hands-on Activities
Try out this cool activity to hear sound vibrations.
![How can I make glue?](/sites/default/files/2019-08/how-can-i-make-glue.jpg)
How can I make glue?
Hands-on Activities
Discover how to use some common kitchen ingredients to make glue.
![How can you see underwater?](/sites/default/files/2019-08/how-can-you-see-underwater.jpg)
How can you see underwater?
Hands-on Activities
Explore how we see things through water.
![Image © exdez, iStockPhoto.com](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Image%2C%2C.jpg?itok=ywUpwGCd)
How Can Your Doctor Use the Data in You?
STEM Explained
Scientists are training artificial intelligence to diagnose injuries using x-rays and other medical imagery of you (and millions of others). What improvements and other changes might this bring to the health care system?
![How do I see colour?](/sites/default/files/2019-08/how-do-i-see-colour.jpg)
How do I see colour?
Hands-on Activities
How is light connected to the colours we see? In this STEAM activity make a colourful light catcher and discover why we see different colours?
![Colourful sunglasses](/sites/default/files/styles/resource_card_image_360x300_/public/2021-03/colourful_sunglasses.jpg?itok=mZ_pixQ-)
How Do We See Colour?
STEM Explained
How does the human eye see visible light as colour? And why do some people see more colours than others?
![Gamma ray image of the Milky Way taken by NASA’s Fermi Gamma Ray Space Telescope (NASA)](/sites/default/files/styles/resource_card_image_360x300_/public/2020-03/Gamma_ray_Milky_Way.jpg?itok=5Ju9xdU5)
Gamma Rays: Helper or Hazard?
STEM Explained
Gamma rays might make you think of cancer, harmful radiation or superheroes. But gamma rays have lots of uses: food safety, manufacturing and even medicine!
![How can I make a bottle rocket?](/sites/default/files/2019-08/how-can-i-make-a-bottle-rocket.jpg)
How can I make a bottle rocket?
Hands-on Activities
Use a pop bottle and other everyday materials to create a rocket that you can launch outdoors.
![How can I make a Vortex Cannon?](/sites/default/files/2019-08/how-can-i-make-a-vortex-cannon.jpg)
How can I make a Vortex Cannon?
Hands-on Activities
Build a vortex cannon and discover how fluids (liquids and gases) can move in unique ways due to their physical properties.
![woman with camera](/sites/default/files/styles/resource_card_image_360x300_/public/2019-10/woman_with_camera.jpg?itok=RPlx-udx)
Eye vs. Camera
STEM Explained
The human eye lets us see the world by sending impulses to our nervous system. In many ways, it is very similar to other optical devices, including cameras.
![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!