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The Material World

Thundersnow near a cabin on a hillside

Thundersnow: winter thunderstorms

STEM Explained

When thunder and lightning occur but the main form of precipitation is snow, not rain, it’s called thundersnow.

Pitcher holding a baseball

Why Do Curveballs Curve?

STEM Explained

Bernoulli’s equation is key to understanding why curveballs curve.

Why do raisins dance in soda pop?

Why do raisins dance in soda pop?

Hands-on Activities

Let them bop ‘til they drop! What causes these raisins to reach new heights in this hands on activity?

Which materials bounce?

Which materials bounce?

Hands-on Activities

Balls go up and down. But what makes for a good ball? Find out by exploring which materials bounce.

Hamilton, Ontario industrial area with Toronto skyline in the background

What are Greenhouse Gases?

Backgrounders

This backgrounder explains what greenhouse gases are and how they contribute to climate change.

What causes ocean currents?

What causes ocean currents?

Hands-on Activities

Create a model of ocean currents and learn how currents are formed.

What do magnets do?

What do magnets do?

Hands-on Activities

Have fun discovering what magnets can pick up in this hands on activity.

Charging a cell phone

What If You Could Charge Your Phone Using Radio Waves?

STEM Explained

Could we use radio waves to charge electrical technologies in the future?

Thermal images of people and objects

Thermopower and the Body Heat-Powered Flashlight

STEM Explained

Can your body be a source of electricity generation? Maybe, if you understand heat transfer. Explore this concept through a 2013 invention by a Canadian teen.

Telegraph key used in Metcalfe, Ontario telegraph office (Ingenium)

Telegraph Key

Interactives

The telegraph works by transmitting signals through an electrical circuit. Learn more and print your own telegraph key using this 3d model of a real artefact.

Mars Science Laboratory Parachute Qualification Testing

Testing Parachutes for Mars

STEM Explained

NASA engineers apply kinematics and dynamics to test parachutes designed specifically to help space probes land safely using aerodynamics.

A person’s hand holding a cold pack on an ankle

The Cold Pack: A Chilly Example of an Endothermic Reaction

STEM Explained

When you hurt your ankle, thermodynamics can help you heal! An endothermic reaction reduces the swelling by cooling your injury.

AeroVelo's winning flight

The Hovering Human

STEM Explained

Learn how a team of Canadian engineers used Bernoulli’s Principle to design a human-powered helicopter. It set a world record for human-powered hovering flight!

Cartoon woman on a surfboard

The Physics of Surfing

STEM Explained

Learn about the history of surfboards, and how different materials and designs over the years affected the physics at work in surfing.

Wingsuit flying over Massachusetts

Soaring for Sport

STEM Explained

Ever dreamed if overcoming gravity and flying away? Using aerodynamics, wingsuit jumpers get as close to flight as humanly possible.