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Environmental Science

illustration of a hydrogen car

The History and Uses of Hydrogen

STEM Explained

Hydrogen’s tendency towards combustion is what makes it both a dangerous chemical element and a useful energy source.

How does a wheelbarrow help you carry heavy loads?

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?

How does rain become acidic?

Hands-on Activities

Learn how to make a pH indicator and test water samples.

How can I stop bananas from turning brown?

How can I stop bananas from turning brown?

Hands-on Activities

Explore the chemistry behind why bananas turn brown. Can chemistry also help prevent this?

How do animals hide?

How do animals hide?

Hands-on Activities

Play a game of hide and seek to discover how animals can hide in plain sight!

How do I construct a terrarium?

How do I construct a terrarium?

Hands-on Activities

You can make your own terrarium for growing plants!

 A forest damaged by pine beetles

How Do Introduced Species Affect Ecosystems and the Economy?

STEM Explained

When a species ends up outside of its natural zone, the consequences on other species, ecosystems and human industries can be severe. Climate change and human activities can introduce species into new zones.

Bird near a wind farm

How do Wind Farms Affect Birds and Bats?

STEM Explained

Wind energy generates a lot of electricity in Canada. But wind turbines can be dangerous for wildlife.

Salmon aquaculture pens

Farmed Salmon vs. Wild Salmon

STEM Explained

Aquaculture is seen as a sustainable way to produce fish. But are farmed salmon better than wild fish?

Green walls in Harvard University

Green Walls

STEM Explained

Green walls use plant processes to improve air quality in buildings.

Narwhals, polar bears and other common Arctic animals swim in the Arctic waters.  Image © id-work, iStock

How are Arctic Animals in Canada Affected by Climate Change?

STEM Explained

Arctic animals have evolved to thrive in harsh arctic ecosystems, but the environmental footprint created by climate change is affecting their survival.

bees on frame held by beekeeper

How are the World's Bee Populations Doing?

STEM Explained

Bees are important for agriculture. But bee populations face threats. This resource looks at Colony Collapse Disorder, herbicides & pesticides, and more.

Canaries were once used to signal dangers to miners. - Image © Vito Cangiulli, iStockPhoto.com

How Can Birds Help Monitor the Health of Ecosystems?

STEM Explained

Scientists can observe birds to get useful information about the health of, and changes in, an ecosystem.

Measuring Slope Of Soil

Careers: Soil Scientist

Picture Collections

5 images some work that a scientist who studies the Earth's soil might do such as classifying types of soil and measuring the slope of soil

Gentilly-2 nuclear reactor

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.