Introduction to Viruses
Backgrounders
Learn about the basics of viruses.
Simple Machines - Levers
Backgrounders
The lever is a type of simple machine. Learn about the different classes of levers and how they provide mechanical advantage.
Airborne & Space Telescopes
Backgrounders
Learn about telescopes that do their work high in Earth’s atmosphere and in space.
All About Minerals
Backgrounders
Learn about the characteristics and uses of minerals.
Light and Its Properties
Backgrounders
Learn about light and its properties.
Tropical Rainforest Biome
Backgrounders
Learn about the location, plants, animals, human impacts and conservation of tropical rainforest biome.
Savanna Biome
Backgrounders
Learn about the location, plants, animals, human impacts and conservation of the savanna biome.
Desert Biome
Backgrounders
Learn about the location, plants, animals, human impacts and conservation of the desert biome.
Boreal Forest/Taiga Biome
Backgrounders
Learn about the location, plants, animals, human impacts and conservation of the boreal forest/Taiga biome and meet Anne-Claude Pépin who is a fire management technician.
Arctic Tundra Biome
Backgrounders
Learn about the location, plants, animals, human impacts and conservation of the arctic tundra biome.
Reflection and Refraction
Backgrounders
Learn about reflection and refraction and meet Emily Altiere, a PhD student in physics who studies lasers.
How We See
Backgrounders
Learn about how human vision works as well as some common types of vision problems.
Combinatorics
Backgrounders
Learn about the branch of mathematics involved with how things can be arranged known as combinatorics.
Keeping Data Safe: Introduction to Encryption
Backgrounders
Learn about the branch of mathematics involved with keeping data safe known as encryption.