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Topic 1: Reactions in Aqueous Solutions

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.

Solutioneers Episode 5 screen shot

The Solutioneers Week 5: Chemical Bonding

Interactives

This week's episodes and hands-on activity explore some cool chemistry!

Platinum crystals

Catalytic Converters

STEM Explained

Learn about how catalytic converters make vehicle emissions less harmful.

Scott Kelly et Terry Virts inspectent le système d’élimination du dioxyde de carbone de la SSI (Photo via Wikimedia Commons)

Carbon Dioxide on Earth and on the ISS

Backgrounders

Carbon dioxide is an important part of the air on Earth and in space. What is carbon dioxide? How is it measured? How can it affect us mentally and physically?

Browning apple

Why Do Apples Turn Brown After You Cut Them?

STEM Explained

Has your fresh juicy apple turned an unsightly brown? Learn about the redox reaction behind the transformation.

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?

Cartoon of people cleaning teeth

How can chemistry help you take care of your teeth?

STEM Explained

What are your teeth made up of? What chemistry is at work in your mouth? Why do some people get cavities even if they brush regularly?

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 are curds and whey?

What are curds and whey?

Hands-on Activities

It starts with curds and whey! Explore the basic chemistry behind making cheese in this hands on activity.

What are the effects of acid rain on rocks?

What are the effects of acid rain on rocks?

Hands-on Activities

Learn about the chemical reaction that happens between acid rain and limestone.

What happens when acids and bases mix?

What happens when acids and bases mix?

Hands-on Activities

Learn about acid-base reactions. Make you own pH indicator and test it with different solutions.

A set of lipstick in various colours

The Chemistry of Lipstick

STEM Explained

Learn about the organic compounds that make up lipstick as well as about some of the chemistry that goes into this popular cosmetic.

Bacteria can be used to generate electricity

Microbial Fuel Cells

STEM Explained

In a few decades, some of the electricity you use might be generated by bacteria.