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Content Knowledge: CK 2.1

Green chemistry industry icon

Introduction to Green Chemistry

STEM Explained

Green chemistry is a field that looks at the sustainability of products and processes designed by people.

Cars driving through thick smog

How Vehicles Pollute the Air

Backgrounders

Learn how vehicles affect air quality, including their contribution to smog.

fuel cell car header

Hydrogen Fuel Cell Vehicles

Backgrounders

Learn about vehicles that use hydrogen for fuel.

Shari Forbes à l'extérieur du centre de décomposition humaine

Shari Forbes (she/her/elle)

Career Profiles

Forensic Scientist

I conduct research to understand how the human body decomposes in our unique Canadian environment.
Heating a liquid over a flame in a lab

Types of Chemical Reactions

Backgrounders

Learn about the four main types of chemical reactions.

Test tubes with colourful liquids

Evidence of Chemical Change

Backgrounders

Learn how to tell if a chemical reaction has taken place.

Electroplating equipment

Chemical Reactions: Conditions & Speeds

Backgrounders

Learn about the special conditions that let some chemical reactions take place.

Platinum crystals

Catalytic Converters

STEM Explained

Learn about how catalytic converters make vehicle emissions less harmful.

Blue whale swimming

Can Whales Really Explode?

STEM Explained

When deceased whales wash up on shore, people fear they might explode. Gas laws, decomposition reactions and organic chemistry can help us understand this fear.

Hamilton Street Railway bus in downtown Hamilton, Ontario © Adam E. Moreira [CC BY-SA 3.0], Wikimedia Commons

Fueling Internal Combustion Engines

Backgrounders

Learn about the wide variety of fuels used in vehicles.

What speeds up a chemical reaction?

What speeds up a chemical reaction?

Hands-on Activities

Learn about the role of yeast in this fun decomposition reaction.

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.

What is an exothermic reaction?

What is an exothermic reaction?

Hands-on Activities

Things are heating up! Explore the temperature change that occurs in an exothermic reaction and the role of catalysts is this chemistry activity.

Soapy hands

Stupendous Suds

STEM Explained

Every time you wash your hands with soap, there are complex chemical reactions taking place.

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.