![Green chemistry industry icon](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Green_chemistry_industry_icon.jpg?itok=NorVcUt3)
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](/sites/default/files/styles/resource_card_image_360x300_/public/2019-12/cars_driving_through_smog.jpg?itok=oUpI0xvE)
How Vehicles Pollute the Air
Backgrounders
Learn how vehicles affect air quality, including their contribution to smog.
![fuel cell car header](/sites/default/files/styles/resource_card_image_360x300_/public/2022-12/fuel%20cell%20car%20header.jpg?itok=jTanjOIn)
Hydrogen Fuel Cell Vehicles
Backgrounders
Learn about vehicles that use hydrogen for fuel.
![Shari Forbes à l'extérieur du centre de décomposition humaine](/sites/default/files/styles/career_image/public/2022-03/Shari%20Forbes.jpg?itok=tS4g4EoW)
Shari Forbes (she/her/elle)
Career Profiles
Forensic Scientist
![Hand writing chemical equations](/sites/default/files/styles/resource_card_image_360x300_/public/2021-10/writing_chemical_equations.jpg?itok=aOerl6xI)
Chemical Equations
Backgrounders
Learn about how to write and balance chemical equations.
![Heating a liquid over a flame in a lab](/sites/default/files/styles/resource_card_image_360x300_/public/2021-11/reaction_types_header.jpg?itok=RwhxbpFu)
Types of Chemical Reactions
Backgrounders
Learn about the four main types of chemical reactions.
![Test tubes with colourful liquids](/sites/default/files/styles/resource_card_image_360x300_/public/2021-11/test-tube-with-colourful_liquids.jpg?itok=MEo5D0U_)
Evidence of Chemical Change
Backgrounders
Learn how to tell if a chemical reaction has taken place.
![Electroplating equipment](/sites/default/files/styles/resource_card_image_360x300_/public/2021-11/electroplating-equipment.jpg?itok=jJASnDjb)
Chemical Reactions: Conditions & Speeds
Backgrounders
Learn about the special conditions that let some chemical reactions take place.
![A mole and the number of atoms or molecules in a mole](/sites/default/files/styles/resource_card_image_360x300_/public/2020-07/mole_on_hill.jpg?itok=K06_BGPZ)
Moles and Molarity: Counting and Chemistry from Donuts to Soap
STEM Explained
To count tiny things like atoms and molecules, scientists use a measurement called the mole.
![Solutioneers Episode 5 screen shot](/sites/default/files/styles/resource_card_image_360x300_/public/2020-04/Solutioneers_Episode_5_header.jpg?itok=JUEX3E1V)
The Solutioneers Week 5: Chemical Bonding
Interactives
This week's episodes and hands-on activity explore some cool chemistry!
![Farah Halsaad | Chimiste industrielle](/sites/default/files/styles/career_image/public/2019-09/Farah%20Halsaad.png?itok=8bEInXR8)
Farah Halsaad
Industrial Chemist
![Platinum crystals](/sites/default/files/styles/resource_card_image_360x300_/public/2020-02/Platinum-crystals.jpg?itok=CIVtGM1E)
Catalytic Converters
STEM Explained
Learn about how catalytic converters make vehicle emissions less harmful.
![Blue whale swimming](/sites/default/files/styles/resource_card_image_360x300_/public/2019-10/Blue_whale.jpg?itok=jItzw1qc)
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.
![Browning apple](/sites/default/files/styles/resource_card_image_360x300_/public/2020-03/Browning_apple.jpg?itok=0ChBaFX8)
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](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/cartoon_acid_rain.jpg?itok=J4BMIwgR)
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?