![How does water move up a plant?](/sites/default/files/2019-08/how-does-water-move-up-a-plant.jpg)
How does water move up a plant?
Hands-on Activities
Do an experiment with celery to learn about the structures that help plants take up water.
![How do I construct a terrarium?](/sites/default/files/2019-08/how-do-i-construct-a-terrarium.jpg)
How do I construct a terrarium?
Hands-on Activities
You can make your own terrarium for growing plants!
![A forest damaged by pine beetles](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/pine-beetle-damage-forest.jpg?itok=rD_omerz)
How Do Introduced Species Affect Ecosystems and the Economy?
STEM Explained
When a species ends up outside of its natural zone, the consequences on other species, ecosystems and human industries can be severe. Climate change and human activities can introduce species into new zones.
![Goldfish Goldfish](/sites/default/files/styles/resource_card_image_360x300_/public/Gullfiskur.jpg?itok=L6czSzoc)
Fish: Freshwater
Picture Collections
4 images of some fish such as koi that live in freshwater river and lake environments and in freshwater aquariums and garden ponds
![Clown Fish Clown Fish](/sites/default/files/styles/resource_card_image_360x300_/public/Clown_fish_in_the_Andaman_Coral_Reef.jpg?itok=nkTzBh1T)
Fish: Saltwater
Picture Collections
14 images of some fish such as lion fish, grouper and sharks that live in saltwater environments like oceans, saltwater lakes and aquariums
![Water Lily Water Lily](/sites/default/files/styles/resource_card_image_360x300_/public/waterlily.jpg?itok=nnvmuAjZ)
Flowers: Cup Shape
Picture Collections
8 images of some flowerheads such as roses and water lilies whose outer petals are longer than the petals in the centre of the flower
![Iris Iris](/sites/default/files/styles/resource_card_image_360x300_/public/blueiris.jpg?itok=dvud8S14)
Flowers: Irregular Shape
Picture Collections
3 images of some asymmetrical flowerheads such as an iris and an Orchis Sima or Monkey Orchid
![Sunflower Sunflower](/sites/default/files/styles/resource_card_image_360x300_/public/sunflowers.jpg?itok=pmiRVO51)
Flowers: Radial Shape
Picture Collections
7 images of some symmetrical flowerheads such as asters and sunflowers whose petals radiate from the centre of the flower
![Petunias Petunias](/sites/default/files/styles/resource_card_image_360x300_/public/petunias.jpg?itok=yMPRRNyK)
Flowers: Trumpet Shape
Picture Collections
5 images of some flowerheads such as petunias and lilies that start as a narrow base and widen to an open shape
![fancy guppies](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/fancy-guppies.jpg?itok=3im2BfH2)
Guppies, Guppies Everywhere!
STEM Explained
How do different populations adapt to their environment? Let’s explore this concept through guppy speciation.
![Narwhals, polar bears and other common Arctic animals swim in the Arctic waters. Image © id-work, iStock](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/5755.jpg?itok=CVjIdhgO)
How are Arctic Animals in Canada Affected by Climate Change?
STEM Explained
Arctic animals have evolved to thrive in harsh arctic ecosystems, but the environmental footprint created by climate change is affecting their survival.
![bees on frame held by beekeeper](/sites/default/files/styles/resource_card_image_360x300_/public/2019-11/Bees_at_work.jpg?itok=eCBFpn4d)
How are the World's Bee Populations Doing?
STEM Explained
Bees are important for agriculture. But bee populations face threats. This resource looks at Colony Collapse Disorder, herbicides & pesticides, and more.
![Canaries were once used to signal dangers to miners. - Image © Vito Cangiulli, iStockPhoto.com](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Canaries%20were%20once%20used%20to%20signal%20dangers%20to%20miners.jpg?itok=mc-wHhjT)
How Can Birds Help Monitor the Health of Ecosystems?
STEM Explained
Scientists can observe birds to get useful information about the health of, and changes in, an ecosystem.
![Massive algal bloom](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/massive-algal-bloom.jpg?itok=pqgXB2yc)
Eutrophication: Why you should care about pond scum
STEM Explained
When fertilizers from agriculture get into lakes and rivers, big problems can result for aquatic ecosystems, food chains & webs!
![Blue Jay Blue Jay](/sites/default/files/styles/resource_card_image_360x300_/public/Bluejay.jpg?itok=txRE8CEw)
Birds: Songbirds
Picture Collections
10 images of some birds such as finches, chickadees and cardinals that produce sounds and calls in a musical way