![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.
![Abandoned superstructure of Kola Superdeep borehole](/sites/default/files/styles/resource_card_image_360x300_/public/2019-10/superstructure_Kola_Superdeep-borehole.jpg?itok=mBCmyHR7)
The Deepest Hole in the World
STEM Explained
Drilling into Earth’s Interior is no easy task. The Kola Superdeep Borehole is one of the projects that tried to do it.
![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.
![Scott Kelly et Terry Virts inspectent le système d’élimination du dioxyde de carbone de la SSI (Photo via Wikimedia Commons)](/sites/default/files/styles/resource_card_image_360x300_/public/2019-08/6572.jpg?itok=uSk7J690)
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?
![Toy alphabet](/sites/default/files/styles/resource_card_image_360x300_/public/2019-10/Toy_alphabet.jpg?itok=xJB3H0ka)
What's in a Name?
Lessons
Students develop and apply algebraic reasoning, spatial sense/reasoning and communicating skills as they explore the math, science and technology in their name.
![Red-haired woman](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/red-haired_woman.jpg?itok=E7j3ahqo)
The Chemistry of Redheads
STEM Explained
Learn how chemistry and genetics makes redheads stand out from the crowd.
![Weather station in Iceland](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/weather-station-in-iceland.jpg?itok=YCQjngav)
Measuring and Forecasting Weather
Backgrounders
Learn about different weather instruments that meteorologists use to measure weather.
![Water droplets on a leaf](/sites/default/files/styles/resource_card_image_360x300_/public/2020-01/Water_droplets_on_leaf.jpg?itok=RDkdH3A-)
Needs of Plants
Backgrounders
Plants have specific needs - light, air, water, nutrients, and space - to survive and reproduce.
![Seeds of a pomegranate fruit](/sites/default/files/styles/resource_card_image_360x300_/public/2019-12/pomegranate-seeds.jpg?itok=TTPg8-ln)
Plant Reproduction
Backgrounders
Learn about pollination and other forms of sexual reproduction in plants. And did you know that plants can also reproduce asexually?
![Scoop of potting soil](/sites/default/files/styles/resource_card_image_360x300_/public/2019-12/scoop_of_potting_soil.jpg?itok=U1P0nn1x)
What is Soil?
Backgrounders
Learn about soil, soil texture and the various layers of soil.
![Tree through the four seasons](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Tree_through_the_four_seasons.jpg?itok=d1-felZQ)
Why do we have seasons?
Backgrounders
Learn why seasons change. Discover how they’re different in the Northern and Southern hemispheres.
![Young girl brushing her teeth](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Young_girl_brushing_her_teeth.jpg?itok=VQjOohsa)
Personal Hygiene: Caring for Our Teeth
Backgrounders
Information about cavities, plaque, tartar, gingivitis and how to keep teeth healthy.
![3D representation of a portion of human female brain](/sites/default/files/styles/resource_card_image_360x300_/public/2020-02/Clay-Adams_brain_section.jpg?itok=RDan4dDq)
Clay-Adams Brain
Interactives
This brain model helped doctors better explain things to their patients. Learn about this Ingenium artifact and make your own version using 3D printing!
![Smoke from a crop-duster shows wake turbulence](/sites/default/files/styles/resource_card_image_360x300_/public/2020-03/crop_duster_wake_turbulence.jpg?itok=fnV4IiYR)
What is Air Turbulence?
STEM Explained
Learn about the science behind the four main causes of turbulence.
![Rendering of the human brain](/sites/default/files/styles/resource_card_image_360x300_/public/2019-12/Rendering_human_brain.png?itok=dvtKrWbY)
Brain Architecture
Backgrounders
The human brain has many different parts. Each one plays a different function. But they all work together to manage complex thoughts, feelings and behaviours.