Thème 1 : L’univers matériel

Cars driving through thick smog

How Vehicles Pollute the Air

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

fuel cell car header

Hydrogen Fuel Cell Vehicles

Learn about vehicles that use hydrogen for fuel.

Test tubes with colourful liquids

Evidence of Chemical Change

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

Heating a liquid over a flame in a lab

Types of Chemical Reactions

Learn about the four main types of chemical reactions.

Electroplating equipment

Chemical Reactions: Conditions & Speeds

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

Platinum crystals

Catalytic Converters

Learn about how catalytic converters make vehicle emissions less harmful.

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

Fueling Internal Combustion Engines

Learn about the wide variety of fuels used in vehicles.

Hamilton, Ontario industrial area with Toronto skyline in the background

What are Greenhouse Gases?

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

illustration of a hydrogen car

The History and Uses of Hydrogen

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

Green chemistry industry icon

Green Chemistry 101

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