Steve Spangler Science
Dancing Raisins - The Bubble Lifter
Here is an engaging demonstration of density that you can do with your young physical scientists. Place different rough surfaced objects into carbonated liquid. The carbon dioxide bubbles collect on the surface of the objects and...
Curated OER
Buoyancy - Archimedes Principle
Weight of displaced liquid equals the weight of a floating object. Archimedes' Principle is carefully demonstrated and explained in this science video. The quality is acceptable and the instruction sound. Not exciting, but it is a...