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Physics

Above: Tires on a Boeing 737 (Wikimedia Commons/Politikaner)

How do an Airplane's Tires Help It Land Safely?

STEM Explained

Manufacturing and engineering airplane tires is important work! Learn how airplane tires keep the aircraft safe during takeoff and landing.

Gamma ray image of the Milky Way taken by NASA’s Fermi Gamma Ray Space Telescope (NASA)

Gamma Rays: Helper or Hazard?

STEM Explained

Gamma rays might make you think of cancer, harmful radiation or superheroes. But gamma rays have lots of uses: food safety, manufacturing and even medicine!

How can I build a rollercoaster?

How can I build a rollercoaster?

Hands-on Activities

Try your hand at building a “super coaster” using materials around your home.

How can I engineer a raft so that it holds the most weight?

How can I engineer a raft so that it holds the most weight?

Hands-on Activities

Explore the forces of gravity and buoyancy while designing a raft to hold the most weight possible.

Boy on bicycle

How Can I Go Faster on My Bike?

STEM Explained

You don’t have to pedal harder to go faster. You just have to understand a little bit about gravity, drag and friction!

How can I make a bottle rocket?

How can I make a bottle rocket?

Hands-on Activities

Use a pop bottle and other everyday materials to create a rocket that you can launch outdoors.

How can I make a Vortex Cannon?

How can I make a Vortex Cannon?

Hands-on Activities

Build a vortex cannon and discover how fluids (liquids and gases) can move in unique ways due to their physical properties.

Artist’s conception of NASA’s Space Launch System

Escape Velocity

STEM Explained

Why do a baseball and a rocket need the same launch speed to get from Earth into space? It has to do with physics and gravitational force.

Gentilly-2 nuclear reactor

Cleaning Up Nuclear Waste After Decommissioning

STEM Explained

When a nuclear reactor is no longer in use, the radioactivity in its materials remains. That’s why it’s important to safely deal with the radioactive waste those plants leave behind.

woman with camera

Eye vs. Camera

STEM Explained

The human eye lets us see the world by sending impulses to our nervous system. In many ways, it is very similar to other optical devices, including cameras.

Cartoon aircraft in flight

Cosmic Radiation and Aviation

Backgrounders

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.

Asteroid approaching Earth

Could We Stop an Asteroid?

STEM Explained

If an asteroid were to hit the Earth it could be disastrous. Here are some ways we could protect ourselves.

Sunset over the ocean

Cycle of Day and Night

Lessons

Students explore the cycle of day and night by sorting and classifying pictures, creating images and reading books.

Screen capture from the video “Dealing With Asteroids and Other Space Hazards”

Dealing with Asteroids and Other Space Hazards

STEM Explained

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

Marble run prototype

Design & Build a Marble Run

Lessons

Students will work collaboratively to design and build a marble run that meets specific criteria.