![A melting world-shaped glacier](/sites/default/files/styles/resource_card_image_360x300_/public/2019-11/melting_world-shaped_glacier.jpg?itok=-lrMUAJG)
What is Ocean Warming and Why Does It Matter?
STEM Explained
Oceans absorb the greatest amount of solar radiation on Earth. Ocean warming can lead to glaciers melting and ocean acidification.
![What is the Greenhouse Effect?](/sites/default/files/2019-08/what-is-the-greenhouse-effect.jpg)
What is the Greenhouse Effect?
Hands-on Activities
Explore the greenhouse effect and learn about the impacts it can have on the environment.
![Solar panel project in Dakar, Senegal](/sites/default/files/styles/resource_card_image_360x300_/public/2019-11/Solar_project_Dakar%2CSenegal.jpg?itok=q64WAuqV)
What are Carbon Offsets?
STEM Explained
Can carbon offsets help you reduce your environmental footprint, practice sustainable living and fight climate change?
![Hamilton, Ontario industrial area with Toronto skyline in the background](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/the-hamilton-industrial-area-with-toronto-skyline.jpg?itok=shKtb5Tb)
What are Greenhouse Gases?
Backgrounders
This backgrounder explains what greenhouse gases are and how they contribute to climate change.
![Biofuel concept](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/biofuel-concept.jpg?itok=mGz1FUEJ)
What are the Pros and Cons of Ethanol Biofuel?
STEM Explained
Biofuels like ethanol might help fight climate change. But they can contribute to food insecurity and greenhouse gases in ways that might surprise you.
![Red Onion, Parsnips, Lettuce Red Onion, Parsnips, Lettuce](/sites/default/files/styles/resource_card_image_360x300_/public/ropl.jpg?itok=v3BvJdhW)
Vegetables
Picture Collections
14 images of some plants such as carrots, cabbage and leeks whose roots, stems or leaves are used for food
![DNA barcoding used to test food](/sites/default/files/styles/resource_card_image_360x300_/public/2020-02/DNA_barcoding_food_testing.jpg?itok=Hidu7x3v)
The Classification of Life: From Linnaeus to DNA Barcoding
Backgrounders
Learn about two taxonomy systems that scientists use to classify the life around us.
![Cartoon mammoth](/sites/default/files/styles/resource_card_image_360x300_/public/2019-10/Cartoon_mammoth.jpg?itok=yPc7tmR_)
Should Scientists Clone Extinct Species?
STEM Explained
Cloning makes it possible to bring extinct species back to life. But is that a good idea?
![Ship in Arctic waters](/sites/default/files/styles/resource_card_image_360x300_/public/2019-10/Ship_in_Arctic_waters.jpg?itok=vAnbppZZ)
Reaching the Arctic
STEM Explained
How will arctic ice melt from climate change affect exploration, scientific research and geopolitics?
![Iguana Iguana](/sites/default/files/styles/resource_card_image_360x300_/public/photo-1428542244207-0aaec316e609.jpg?itok=b0mH_hlU)
Reptiles
Picture Collections
10 images of some cold-blooded vertebrates such as snakes, lizards and alligators typically having dry, scaly skin
![Sunlight Sunlight](/sites/default/files/styles/resource_card_image_360x300_/public/sunlight2.jpg?itok=4MvZ2oC-)
Plants: Needs
Picture Collections
8 images representing some of the needs of plants for healthy growth such as water, nutrients and light
![Plant](/sites/default/files/styles/resource_card_image_360x300_/public/photo-1422558068704-1f8f0609e27c.jpg?itok=LKl3nVfU)
Plants: Parts
Picture Collections
12 images of some major parts of plants such as stems, roots, flowers and leaves
![Fennel Seeds Fennel Seeds](/sites/default/files/styles/resource_card_image_360x300_/public/Fennel_seed.jpg?itok=k7Q96zAi)
Plants: Seeds
Picture Collections
6 images of some seeds which are the fertilized part of a plant used for germinating new plants such as fennel, kiwis and pumpkins
![Great tits eat from a bird feeder](/sites/default/files/styles/resource_card_image_360x300_/public/2019-10/Great_tits_bird_feeder.jpg?itok=aiRpq_-G)
Natural Selection in Your Backyard
STEM Explained
A study on bird feeders and beak sizes shows how an everyday human activity can affect the evolution of another species.
![Boreal Forest Boreal Forest](/sites/default/files/styles/resource_card_image_360x300_/public/photo-1434394566634-da0fa7e334b8.jpg?itok=vRRjTv2B)
Plants: Biomes
Picture Collections
9 images of plants in some large naturally occuring habitats called biomes such as tundra, grasslands and boreal forests