Unit 1: Ecosystems

Bees are important for agriculture. But bee populations face threats. This resource looks at Colony Collapse Disorder, herbicides & pesticides, and more.

Scientists can observe birds to get useful information about the health of, and changes in, an ecosystem.

4 images of some fish such as koi that live in freshwater river and lake environments and in freshwater aquariums and garden ponds

14 images of some fish such as lion fish, grouper and sharks that live in saltwater environments like oceans, saltwater lakes and aquariums

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

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

5 images some work that a scientist who studies the Earth's soil might do such as classifying types of soil and measuring the slope of soil

When fertilizers from agriculture get into lakes and rivers, big problems can result for aquatic ecosystems, food chains & webs!

images of some birds in the process of building their nests

10 images of some birds' nests showing various designs, structures and materials used for building them

5 images of predatory birds that hunt and feed on other animals such as eagles, the Great Horned Owl and vultures

10 images of some birds such as finches, chickadees and cardinals that produce sounds and calls in a musical way

Beavers are a Canadian symbol. But in South America, they’re considered an invasive species.

5 images of some work related to the scientific study of climate such as using instruments to measure changes in climates

5 images of some work that farmers do such as feeding cows, planting fields and harvesting grain