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Biology

 A forest damaged by pine beetles

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.

How do movies move?

How do movies move?

Hands-on Activities

Explore the concept of persistence of vision in this hands on activity.

Lawn mower mowing grass

How Do Plants Use Chemical Signalling?

STEM Explained

How do plants use scents? Learn how some plants use chemical signals to send messages to animals or other plants.

Colourful sunglasses

How Do We See Colour?

STEM Explained

How does the human eye see visible light as colour? And why do some people see more colours than others?

Bird near a wind farm

How do Wind Farms Affect Birds and Bats?

STEM Explained

Wind energy generates a lot of electricity in Canada. But wind turbines can be dangerous for wildlife.

bees on frame held by beekeeper

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.

How big were dinosaurs?

How big were dinosaurs?

Hands-on Activities

Some dinosaurs were very big! Compare the sizes of different dinosaurs to the sizes of familiar objects you see in your community.

Salmon aquaculture pens

Farmed Salmon vs. Wild Salmon

STEM Explained

Aquaculture is seen as a sustainable way to produce fish. But are farmed salmon better than wild fish?

Canaries were once used to signal dangers to miners. - Image © Vito Cangiulli, iStockPhoto.com

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.

Goldfish

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

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

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

Flowers: Irregular Shape

Picture Collections

3 images of some asymmetrical flowerheads such as an iris and an Orchis Sima or Monkey Orchid

Sunflower

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

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