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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


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.

Heating a liquid over a flame in a lab

Types of Chemical Reactions


Learn about the four main types of chemical reactions.

Test tubes with colourful liquids

Evidence of Chemical Change


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

Electroplating equipment

Chemical Reactions: Conditions & Speeds


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.

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.

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.

A person’s hand holding a cold pack on an ankle

The Cold Pack: A Chilly Example of an Endothermic Reaction

STEM Explained

When you hurt your ankle, thermodynamics can help you heal! An endothermic reaction reduces the swelling by cooling your injury.

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.

Adam Melnick | Coordinateur de l'apprentissage et instructeur en santé et sécurité pour un centre de formation en calorifugation

Adam Melnick

Career Profiles

Apprenticeship Coordinator and Health and Safety Instructor

Adam Melnick is the Apprenticeship Coordinator and Health and Safety Instructor for the Heat and Frost Insulator Training Centre.