Take your class to the next level of star gazing and introduce them to star clusters with an entertaining video. The narrator explains the differences between open and globular star clusters. Pupils also discover the ages and orbiting...

We know stars are giant balls of plasma, so why are they drawn as pointy star shapes? The video solves this mystery through an explanation of how lenses work both in our eyes and in telescopes. It also discusses the proper way to color a...

It's rare, toxic, radioactive, and we have yet to find a use for it ...  it's protactinium! Learn the about protactinium's predicted existence, discovery, and properties from a knowledgeable professor. As part of a series of 118...

The featured movie focuses on the ancestry of our four-footed friends. Find the fundamental pattern of their limbs and vertebrae in fossils of fish. After viewing, biology learners can enjoy interactive websites to zoom in on the...

Text messages full of abbreviations can be easier to understand once you know what the letters stand for. The same goes for reading code because computer programmers always devise ways to reduce typing. One typical line of code that...

The Hubble telescope captures an event never before seen be the human eye. An extra-solar planet orbited too close to its parent star and evaporated away. This gives scientists an understanding of what would happen if a gas giant were...

Find out why your shadow looks different at various times of the day with a short earth science video. Young scientists learn about what a shadow is, why it grows longer or shorter over the course of a day, and why it points in...

Observe how the Sun, Moon, and stars appear to move across the day and night sky. Use this resource to observe and predict patterns in the position of the Sun, Moon, and stars that occur in the sky over a day.

This video episode of Crash Course Physics focuses on what we can learn from light. Light is everywhere but it's not as predictable as you might think. It's a wave that travels in straight lines, yet it also reflects off of surfaces,...