![What is the Greenhouse Effect?](/sites/default/files/2019-08/what-is-the-greenhouse-effect.jpg)
What is the Greenhouse Effect?
Hands-on Activities
Explore the greenhouse effect and learn about the impacts it can have on the environment.
![Hamilton, Ontario industrial area with Toronto skyline in the background](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/the-hamilton-industrial-area-with-toronto-skyline.jpg?itok=shKtb5Tb)
What are Greenhouse Gases?
Backgrounders
This backgrounder explains what greenhouse gases are and how they contribute to climate change.
![What are the effects of acid rain on rocks?](/sites/default/files/2019-08/what-are-the-effects-of-acid-rain-on-rocks.jpg)
What are the effects of acid rain on rocks?
Hands-on Activities
Learn about the chemical reaction that happens between acid rain and limestone.
![Screen captures from embedded Kurzgesagt – In a Nutshell videos](/sites/default/files/styles/resource_card_image_360x300_/public/2020-02/pros_cons_nuclear_energy.png?itok=NVvZ7d08)
What are the Pros and Cons of Nuclear Energy?
STEM Explained
These two “point-counterpoint” videos provide arguments for and against using nuclear energy to generate electricity.
![Nitrogen symbol from periodic table](/sites/default/files/styles/resource_card_image_360x300_/public/2021-03/the-periodic-table-element-nitrogen.jpg?itok=bs_Xbeg4)
Understanding the Nitrogen Cycle
STEM Explained
What is the nitrogen cycle? How do human activities such as using fertilizer affect the nitrogen cycle? How can this cause greenhouse gases?
![Plastic drinking straws](/sites/default/files/styles/resource_card_image_360x300_/public/2020-06/plastic_drinking_straws.jpg?itok=jMA-xYeF)
We Use a Lot of Plastic
STEM Explained
What are microplastics? How are plastics polluting aquatic ecosystems?
![plastic food containers, trays and food packaging made from polystyrene](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/plastic_food_containers.png?itok=0wdulBKp)
Polystyrene: The Pros, the Cons, the Chemistry
STEM Explained
Learn the organic chemistry behind this very useful plastic. Why is recycling polystyrene hard? Why does polystyrene often end up as solid waste?
![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.
![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 does a wheelbarrow help you carry heavy loads?](/sites/default/files/2019-08/how-does-a-wheelbarrow-help-you-carry-heavy-loads.jpg)
How does a wheelbarrow help you carry heavy loads?
Hands-on Activities
In this hands on activity build a wheelbarrow from simple materials to explore just how useful simple machines can be!
![How does rain become acidic?](/sites/default/files/2019-08/how-does-rain-become-acidic.jpg)
How does rain become acidic?
Hands-on Activities
Learn how to make a pH indicator and test water samples.
![Gentilly-2 nuclear reactor](/sites/default/files/styles/resource_card_image_360x300_/public/2019-10/Gentilly-2.jpg?itok=wSCI9iF8)
Cleaning Up Nuclear Waste After Decommissioning
STEM Explained
When a nuclear reactor is no longer in use, the radioactivity in its materials remains. That’s why it’s important to safely deal with the radioactive waste those plants leave behind.