The Earth and Space

Learn about how craters are formed and about some of Canada's impact craters.

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

Learn how people came to understand the source of cosmic radiation, as well as how this radiation impacts those who work in and travel on airplanes.

Find out how asteroids, space debris, and cosmic radiation can be dangerous, and how to monitor them and protect ourselves from these space hazards.

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

Learn what makes a crystal a crystal.