Provides an overview of liquid matter, discussing the characteristics and properties of important liquids such as water, blood, and oil, describes the impact of liquids on relevant societal issues, and provides information on other related topics.
Bill takes to the sky in a hot-air balloon and goes scuba diving in the Seattle Aquarium to explain why things like boats, helium, and balloons are buoyant. Demonstrates two experiments on buoyancy.
Discusses in simple terms, with examples from nature and technology, the effects of shape on the speed and efficiency of movement through air and water.
