![Pluto lit by a distant Sun](/sites/default/files/styles/resource_card_image_360x300_/public/2021-01/pluto_and_sun.jpg?itok=Lrs0GRLo)
Meet Our Dwarf Planets
Backgrounders
Learn about the dwarf planets in our Solar System.
![Girl working at blackboard](/sites/default/files/styles/resource_card_image_360x300_/public/2021-01/girl_doing_multiplication.jpg?itok=WjMWgLOG)
Prime Factors
Backgrounders
Learn about prime factorization and least common multiples.
![Child holding a clock](/sites/default/files/styles/resource_card_image_360x300_/public/2021-01/child_holding_clock.jpg?itok=iuKfA-8D)
Modular Arithmetic
Backgrounders
Learn about a special type of math called clock math.
![Hands holding a hot mug](/sites/default/files/styles/resource_card_image_360x300_/public/2021-01/mittens_hot_mug.jpg?itok=wwJZkYcs)
Introduction to Heat Transfer
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Learn about the different ways that heat is transferred.
![Researcher with automation equipment](/sites/default/files/styles/resource_card_image_360x300_/public/2021-01/Automation%20equipment.jpg?itok=-rpCeEDO)
Helping Patients through Drug Discovery
STEM Explained
Learn how researchers from Amgen are developing new drugs for cancer.
![Medical image of the brain using Technetium-99m](/sites/default/files/styles/resource_card_image_360x300_/public/2021-01/brain_scan-te-99.jpg?itok=zvUZojUo)
Innovations in Nuclear Technologies
STEM Explained
Learn about why Canada is a world leader in nuclear technology.
![Cloud model of an atom](/sites/default/files/styles/resource_card_image_360x300_/public/2021-01/cloud_model_atom.jpg?itok=3YgrftL8)
Introduction to the Atom
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Learn about the parts of an atom and its history.
![Testing of the Boeing Starliner spacesuit](/sites/default/files/styles/resource_card_image_360x300_/public/2021-01/starliner_spacesuit_testing.jpg?itok=qqA2s20r)
Testing Spacesuit Material
STEM Explained
Learn about a new material for spacesuits and the engineer who designed it.
![Our climate is changing](/sites/default/files/styles/resource_card_image_360x300_/public/2021-01/climate_change_earth.png?itok=zcd_ozLA)
Introduction to Climate Change
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Learn more about the causes and impacts of global climate change.
![White water rafting on the Fraser River in British Columbia](/sites/default/files/styles/resource_card_image_360x300_/public/2020-12/white-water-rafting-on-the-fraser-river.jpg?itok=ou_sM1-M)
Introduction to Rivers & Streams
Backgrounders
Learn about the physical geography, chemistry and ecology of rivers and streams.
![Water treatment plant near Kitchener, Ontario](/sites/default/files/styles/resource_card_image_360x300_/public/2021-01/grand-river-water_treatment_plant.jpg?itok=9hBQ6tW_)
Water Treatment
Backgrounders
Learn about how water is treated at municipal water treatment plants.
![Meteor seen through an opening in the trees](/sites/default/files/styles/resource_card_image_360x300_/public/2021-01/milky-way-meteor-forest.jpg?itok=suu9kYmi)
Meteoroids, Meteors and Meteorites
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Learn about where and when to find meteoroids, meteors and meteorites.
![Boat on a lake at sunset](/sites/default/files/styles/resource_card_image_360x300_/public/2021-01/boat-docked-on-lake-at-sunset.jpg?itok=1QlQiekK)
Humans and Freshwater Ecosystems
Backgrounders
Learn about how people impact the ecosystems of lakes and rivers.
![Colourful liquids and periodic table](/sites/default/files/styles/resource_card_image_360x300_/public/2021-01/colourful_liquids_periodic_table.jpg?itok=BiLEZpiY)
Describing and Classifying Matter
Backgrounders
Learn about the physical and chemical properties of matter.
![Cube overflowing with spheres representing particles](/sites/default/files/styles/resource_card_image_360x300_/public/2020-12/cube_filled_with_particles.jpg?itok=bKfAvtCi)
Introduction to the Particle Theory of Matter
Backgrounders
Learn about how the Particle Theory helps us understand matter.