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Big Idea: The biosphere, geosphere, hydrosphere, and atmosphere are interconnected, as matter cycles and energy flows through them.

Frobisher Bay near Baffin Island

Arctic Tundra Biome

Backgrounders

Learn about the location, plants, animals, human impacts and conservation of the arctic tundra biome.

Leah Clark debout dans un champ d'agriculture

Leah Clark

Provincial Cattle Specialist

Leah Clark is the Provincial Cattle Specialist for the Government of Saskatchewan.
Photo de Mike Dixon

Mike Dixon

Career Profiles

Professor and Director of CESRF

Mike Dixon is the Professor and Director of CESRF at the University of Guelph.
Sheridan Thompson sur une falaise rocheuse

Sheridan Thompson (she/her/they/them)

Career Profiles

Doctoral Candidate

Sheridan Thompson is a Doctoral Candidate at Memorial University of Newfoundland.
Variety of plant groups in Banff National Park, Alberta

Plant Taxonomy

Backgrounders

Learn about the categories, or phylum, of the plant kingdom with examples from each.

Leaf and the Sun

Plant Functions

Backgrounders

Learn about the important plant functions of photosynthesis, respiration and transpiration

Christopher Noble | Responsable des relations et implication des entreprises

Christopher Noble

Corporate Engagement

Christopher Noble works on Corporate Engagement for Environmental Solutions, MIT.
Chelsey Peutert | Ingénieure en environnement agricole

Chelsey Peutert

Agricultural Environmental Engineer

Chelsey Peutery is an Agricultural Environmental Engineer for the Saskatchewan Ministry of Agriculture.
Carly Silver | Écologiste associée

Carly Silver

Career Profiles

Associate Ecologist

Carly Silver is an Associate Ecologist for Stantec Consulting Ltd.
Cartoon leaf holding an umbrella over baby plant

What is Acid Rain?

STEM Explained

Acid rain is any precipitation that has an unusually low pH. It can be rain, snow, fog, etc. But what is a low pH and why is this a problem?

Why is rain not salty?

Why is rain not salty?

Hands-on Activities

Make a model of the water cycle and find out how water moves around on planet Earth.

A melting world-shaped glacier

What is Ocean Warming and Why Does It Matter?

STEM Explained

Oceans absorb the greatest amount of solar radiation on Earth. Ocean warming can lead to glaciers melting and ocean acidification.

What is the Greenhouse Effect?

What is the Greenhouse Effect?

Hands-on Activities

Explore the greenhouse effect and learn about the impacts it can have on the environment.

Solar panel project in Dakar, Senegal

What are Carbon Offsets?

STEM Explained

Can carbon offsets help you reduce your environmental footprint, practice sustainable living and fight climate change?

Hamilton, Ontario industrial area with Toronto skyline in the background

What are Greenhouse Gases?

Backgrounders

This backgrounder explains what greenhouse gases are and how they contribute to climate change.