![Earth seafloor crust](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Atlantic_Oceanic-Crust.jpg?itok=ZOYuVnRG)
Plate Tectonics
STEM Explained
The surface of the Earth is constantly moving, and earthquakes and volcanoes occur, because of plate tectonics.
![Magnified image of a ringwoodite crystal](/sites/default/files/styles/resource_card_image_360x300_/public/2019-11/Blue_Ringwoodite.jpg?itok=EeNe4hAV)
Ringwoodite and the Deep Water Cycle
STEM Explained
The water in the oceans has travelled vast distances. It has even time spent deep below the surface of the Earth, trapped inside the mineral ringwoodite.
![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.
![Condensation on the window of the Apollo 12 Lunar Module, November 1969](/sites/default/files/styles/resource_card_image_360x300_/public/2019-12/Condensation_window_Apollo_12.jpg?itok=KtlUs1RV)
Humidity on Earth and on the ISS
Backgrounders
Humidity is an important part of life on Earth and life in space. This backgrounder explains what humidity is, how it is measured and how it affects us both mentally and physically.
![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.
![Georgetown, Australia](/sites/default/files/styles/resource_card_image_360x300_/public/2022-09/1024px-Georgetown-gulf-savannah-outback-queensland-australia.jpg?itok=_9e1IR1-)
How Did a Piece of Canada End Up in Australia?
STEM Explained
Learn how geologists used radioactive dating to uncover geology shared by both Canada and Australia.
![How can I make a volcano?](/sites/default/files/2019-08/how-can-i-make-a-volcano.jpg)
How can I make a volcano?
Hands-on Activities
Create a model of an erupting volcano and learn about the structures of a stratovolcano in this hands-on activity.
![Wind turbines with energy storage system](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/wind_turbines_with_energy_storage.jpg?itok=LY0Hfznj)
Can You Store Electricity for Later?
STEM Explained
Sometimes, power plants make too much electricity. Energy storage technologies can help! They store the extra electricity and release it when demand goes up.
![Terence Brouwer - Manufacturing Operations Manager](/sites/default/files/styles/career_image/public/2019-08/6506_28.png?itok=rryIhGW1)
Terence Brouwer (Video)
Manufacturing Operations Manager
![Terence Brouwer | Manufacturing Operations Manager Terence Brouwer | Gestionnaire des opérations de fabrication](/sites/default/files/styles/career_image/public/6506_26.png?itok=gLc0LluV)
Terence Brouwer
Career Profiles
Manufacturing Operations Manager
![Emily Jobson | Environmental Specialist Emily Jobson | Spécialiste de l’environnement](/sites/default/files/styles/career_image/public/4607_13.jpg?itok=eaWXYTXC)
Emily Jobson
Career Profiles
Environmental Specialist
![Brendan MacDougall | Completions Engineer Brendan MacDougall | Ingénieur en forage](/sites/default/files/styles/career_image/public/4601_13.jpg?itok=-FFWz7kR)
Brendan MacDougall
Career Profiles
Completions Engineer