![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.
![Green leaf inside](/sites/default/files/styles/resource_card_image_360x300_/public/2022-04/lightbulbgr.jpg?itok=uTQlOExV)
Green Energy
Backgrounders
An overview of environmentally-friendly ways to generate electricity and power
![Boeing 777 Ecodemonstrator aircraft](/sites/default/files/styles/resource_card_image_360x300_/public/2022-01/Ecodemonstrator_Boeing.jpg?itok=qIY5zVR1)
Sustainable Aerospace Firsts
Backgrounders
Learn how Boeing is making aviation more sustainable.
![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.
![Periodic Table with molecular model](/sites/default/files/styles/resource_card_image_360x300_/public/2021-11/benzene_periodic_table.jpg?itok=fCC8x3H6)
Introduction to the Periodic Table of the Elements
Backgrounders
Learn about the elements of the periodic table and how they are organized.
![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.
![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.
![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.
![What happens when acids and bases mix?](/sites/default/files/2019-08/what-happens-when-acids-and-bases-mix.jpg)
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.
![Bacteria can be used to generate electricity](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Microbial_fuel_cell_icon_1.jpg?itok=tkWwcU0G)
Microbial Fuel Cells
STEM Explained
In a few decades, some of the electricity you use might be generated by bacteria.
![illustration of a hydrogen car](/sites/default/files/styles/resource_card_image_360x300_/public/2019-10/Hydrogen_car.png?itok=-Ul7H9-e)
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.
![How can you make popcorn kernels dance?](/sites/default/files/2019-08/how-can-you-make-popcorn-kernels-dance.jpg)
How can you make popcorn kernels dance?
Hands-on Activities
Get your popcorn kernels dancing with this uplifting chemical reaction.
![How can I stop bananas from turning brown?](/sites/default/files/2019-08/how-can-i-stop-bananas-from-turning-brown.jpg)
How can I stop bananas from turning brown?
Hands-on Activities
Explore the chemistry behind why bananas turn brown. Can chemistry also help prevent this?
![3.7 V lithium-ion battery](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Lithium-ion_battery.jpg?itok=aIXK2bLA)
How does a lithium-Ion battery work?
STEM Explained
Learn about the electrochemistry in the batteries that power many of the devices you use every day.