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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.

Iris

Flowers: Irregular Shape

Picture Collections

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

How can I get a quarter through a dime sized hole?

How can I get a quarter through a dime sized hole?

Hands-on Activities

Can you think like an engineer? Try to solve a tricky size and shape problem in this activity.

Sunflower

Flowers: Radial Shape

Picture Collections

7 images of some symmetrical flowerheads such as asters and sunflowers whose petals radiate from the centre of the flower

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!

Petunias

Flowers: Trumpet Shape

Picture Collections

5 images of some flowerheads such as petunias and lilies that start as a narrow base and widen to an open shape

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.

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 make a volcano?

How can I make a volcano?

Hands-on Activities

Create a model of an erupting volcano and learn about the structures of a stratovolcano in this hands-on activity.

Green walls in Harvard University

Green Walls

STEM Explained

Green walls use plant processes to improve air quality in buildings.

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.

fancy guppies

Guppies, Guppies Everywhere!

STEM Explained

How do different populations adapt to their environment? Let’s explore this concept through guppy speciation.

aging through childhood, adulthood and old age

Have Scientists Found a Way for People to Live Longer?

STEM Explained

Everything and everyone ages. But scientists have made discoveries about our cells and circulatory and immune systems that could potentially one day be used to increase human lifespans.

Lacks historical marker in Clover, Virginia

Why is Henrietta Lacks Important?

STEM Explained

When the cells of Henrietta Lacks were collected by medical researchers after her death in 1951, it changed the future of medicine.

Shoe tread (aligraham, Pixabay)

Design & Build a Non-Slip Boot Tread

Lessons

Students work collaboratively to design and build a boot tread that will use friction to prevent slipping on an incline.