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buoyancy

Let’s Talk Buoyancy
Image: iStockphoto.com/Elenaphoto21

Let’s Talk Buoyancy

What is the relationship between buoyancy, density, and Archimedes' principle? Find out from the Mythbusters. Then use this collection of resources to try your hand at a series of interactive online and off-line experiments.

Discovery
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The Real Story Behind Archimedes’ Eureka!

The Real Story Behind Archimedes’ Eureka!

Forget the crown in the bathtub — there's a bigger story to tell about Archimedes and king Hieron. The challenge this time? Could a boat the size of a palace and loaded down with treasures really float? More...

Video
TED-Ed/Armand D'Angour
Buoyancy and Boats

Buoyancy and Boats

Archimedes' principle states that an object in a fluid is buoyed up by a force equal to the amount of fluid displaced. Use this principle in this online game. More...

Game
Wonderville
How Taking a Bath Led to Archimedes’ Principle

How Taking a Bath Led to Archimedes’ Principle

Find out how an overflowing bathtub helped an early Greek mathematician solve a royal problem...and made him famous. More...

Video
TED Ed/Mark Salata
Buoyancy and Density

Buoyancy and Density

What is the relationship between density and buoyancy? Find out here. More...

Article
PBS
Buoyancy Tutorial

Buoyancy Tutorial

Archimedes' principle states that the buoyant force is equal to the weight of displaced liquid. Set sail for a closer look. More...

Video
Sophia Learning
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Floating Lemons and Sinking Limes

Floating Lemons and Sinking Limes

Anyone who's ever bobbed for apples knows they float in the metal tub of water. Find out why — and why you could bob for lemons but not limes. More...

Activity
Steve Spangler Science
An Uplifting Project: The Buoyancy of Balloons

An Uplifting Project: The Buoyancy of Balloons

Are you looking for a hands-on activity to experiment with buoyancy? How about studying the buoyancy of balloons? This project is for you! More...

Activity
Science Buddies
Buoyancy

Buoyancy

This interactive will let you test your understanding of buoyancy. Try different combinations of vessel mass, cargo, and the medium they will float (or sink) in. Experiment online. More...

Interactive
McGraw-Hill
Buoyancy, Density, Mass

Buoyancy, Density, Mass

When will objects float? When will they sink? Learn how buoyancy works with this PhET simulation. More...

Interactive
PhET
Demonstration of Archimedes’ Principle

Demonstration of Archimedes’ Principle

Watch this demo of Archimedes' principle in action — and see if you can predict the results and buoyant force. More...

Video
Paul Hewitt
Hot Air Balloon Physics

Hot Air Balloon Physics

They may appear to glide effortlessly through the air, but hot air balloons use physics to make them fly. Explore the science at work. More...

Article
Real World Physics Problems
How Do Kayakers Use Buoyant Force?

How Do Kayakers Use Buoyant Force?

Have you ever seen a kayak race? Kayakers use the principles of buoyancy to make quick changes in direction. More...

Article
Untamed Science
What The Ancients Knew: Buoyancy Defined

What The Ancients Knew: Buoyancy Defined

The ancient Greeks discovered what makes an object float or sink. Learn more about buoyancy and water displacement in this video. More...

Video
Science Channel

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