![A man powers a drone with a remote control. Image © Bestgreenscreen, iStockphoto.com](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/A%20man%20powers%20a%20drone%20with%20a%20remote%20control.jpg?itok=zRupYrjb)
It's a Bird, It's a Plane, It's... a Drone!
STEM Explained
Drones are very cool and very useful aircraft! This resource explains how drones stay in flight, and outlines some of their uses.
![Is there a difference between baking powder and baking soda?](/sites/default/files/2019-08/is-there-a-difference-between-baking-powder-and-baking-soda.jpg)
Is there a difference between baking powder and baking soda?
Hands-on Activities
Explore acid-base chemical reactions that really get things bubbling in the kitchen!
![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.
![How does water move up a plant?](/sites/default/files/2019-08/how-does-water-move-up-a-plant.jpg)
How does water move up a plant?
Hands-on Activities
Do an experiment with celery to learn about the structures that help plants take up water.
![How fast can you react?](/sites/default/files/2019-08/how-fast-can-you-react.jpg)
How fast can you react?
Hands-on Activities
What is a reflex? Test your reaction time and find out why reflexes are important in this challenge activity.
![How fast does a heart pump blood?](/sites/default/files/2019-08/pexels-stethoscope.jpeg)
How fast does a heart pump blood?
Hands-on Activities
Get active in this activity and explore the impact of exercise on your heart rate. Ready, set, GO!
![orn ethanol plant next to corn field](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/ethanol_plant_and_corn_field.jpg?itok=eSz-wZxP)
How is Ethanol Made?
Backgrounders
Ethanol is a biofuel that can power a car. Learn about the enzymes, catalysts and processes like fermentation involved in ethanol production.
![How is food packaged?](/sites/default/files/2019-08/how-is-food-packaged.jpg)
How is food packaged?
Hands-on Activities
Take a closer look at food packaging. Explore why and how food is packaged in different ways.
![Drop tower ride](/sites/default/files/styles/resource_card_image_360x300_/public/2019-10/Drop_tower_ride.jpg?itok=39sxzXhn)
How is Lenz's Law Used in Drop Tower Rides?
STEM Explained
How do magnetic fields help you get down safely from the top of a drop tower ride? Learn how electromagnetic induction works at the amusement park.
![Train oil cars](/sites/default/files/styles/resource_card_image_360x300_/public/2019-12/Train_oil_cars.jpg?itok=fzNYzAKW)
How is oil moved from one place to another?
Backgrounders
This backgrounder explains the four main ways that oil is moved over land and water.
![How many drops of water can you rest on one coin?](/sites/default/files/2019-08/how-many-drops-of-water-can-you-fit-on-a-coin.jpg)
How many drops of water can you rest on one coin?
Hands-on Activities
Explore surface tension in this hands on challenge activity.
![Importance Line](/sites/default/files/styles/resource_card_image_360x300_/public/2019-11/Importance_Line.png?itok=3Jxez3mN)
Importance Line
Teaching STEM
This strategy helps students think critically about ideas by ranking them on a scale.
![Carillon Hydroelectric Power Station, Saint-André-d'Argenteuil, Quebec](/sites/default/files/styles/resource_card_image_360x300_/public/2019-11/Carillon_Hydroelectric_Power_Station.jpg?itok=wwBKKBX5)
Generating Electricity: Hydroelectric Power
STEM Explained
Learn how moving water can be used to generate electricity. This is called hydroelectric power generation.
![Condensation on a window pane](/sites/default/files/styles/resource_card_image_360x300_/public/2019-12/Condensation_on_window_pane.jpg?itok=ldU_Rpxp)
Humidity on Earth and on the Space Station
Backgrounders
Humidity is an important part of life on Earth and life in space. This backgrounder explains what humidity is, how it is measured and how it affects us both mentally and physically.
![How much air do I breathe in?](/sites/default/files/2019-08/How-much-air-do-I-breathe-in.jpg)
How much air do I breathe in?
Hands-on Activities
Learn how to measure lung capacity and about the factors that can affect our lung capacity in this hands on activity.