PBS
Pbs Kids: Animations: How Does a Blimp Float?
Narrated animation that visually explains how the air displaced by a blimp causes a buoyant force that gives the blimp lift. (30 secs)
PBS
Wgbh: Peep and the Big Wide World: The Way Things Move: Water Levels
Join these children as they discover what happens when rising water can move objects. [1:26]
Sophia Learning
Sophia: Buoyancy
This lesson will describe how buoyant forces allow objects to float.
Sea Studios Foundation
Shape of Life: Molluscs: Nautilus Regulates Its Buoyancy
A nautilus' shell, when x-rayed, reveals the many chambers, which the nautilus uses to regulate buoyancy as it moves up and down in the ocean. Observe this process with this video! [1:54]
PBS
Pbs Learning Media: Hot Air Balloons
Watch kids use the scientific method to figure out why hot air can lift things. Discover how a hot air balloon works.
PBS
Pbs Teachers: Pour Air Into Water Experiment
This video segment adapted from ZOOM offers a clever demonstration of buoyancy by showing how to pour a cup of air into a cup filled with water. [1 mim, 42 sec]