Energy is never created or destroyed, only rearranged

Science · Published 27 October 2026 Swipe more like this →

In short: This mini-lesson explores the fundamental principle that energy is a constant quantity in our universe. By examining how energy moves between objects, fields, and systems, you can learn to see the underlying mechanics of physical change.

The video introduces the conservation of energy as a core scientific principle: energy cannot be created or destroyed, but only transferred. To understand this, the lesson defines key concepts: energy as the ability to cause change, conservation as a quantity remaining constant, and the distinction between objects, fields, and systems.

Based on the NRC's 'A Framework for K-12 Science Education,' the lesson uses these crosscutting concepts to show how energy moves between different places and components. It provides two primary examples in the video to illustrate these transitions, helping students move from observing isolated events to understanding universal laws.

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