Who Turned Out the Lights?

It doesn't matter how old you are or where you live, you can help protect the environment. Created in 2005 for World Environment Day, the agreement shows that the simple steps one can take to make a change have stayed the same, despite...

How much energy does it take to light a room? Class members calculate the total wattage it takes to light the classroom. Through calculations, responsible scientists determine the cost of energy for the year, then figure out how much...

During your eighth grade physical science curriculum, introduce learners to lighting systems and have them research those that are in use at school. They conduct experiments to find out how much electricity is used by each of the...

While we are all familiar with what happens when you turn on a light bulb, Albert Einstein was convinced that there was more happening than meets the eye. The video describes his extension of the research of others to ultimately...

Can you bend light waves using water? Physics Girl demonstrates this phenomenon and explains how it happens as part of her larger series. She then details the applications and even explains how the Internet works.

Barbie, pink flowers, Pink Panther, pink pigs, pink clothes, and pink flamingos all have one thing in common — they really aren't pink because there is no such thing as pink light. So, what is the color we call pink? The short video...

Why so blue? As it turns out, very few things in nature only reflect blue light! A short video from a comprehensive science playlist highlights the beautiful blues of butterflies, birds, and human eyes. The narrator shows how adaptations...

An impressive animation explains the earth's awe-inspiring auroras. The contributions of high-energy particles from the sun collide with our neutral atmospheric atoms. Explained are the roles of solar wind, plasma, the magnetosphere,...

It turns out that some laws were definitely not meant to be broken! A short illustrative video explains why the first and second laws of thermodynamics prevent perpetual motion machines from actually moving perpetually — and why...

Modern animation presents an overview of the history of space exploration. Beginning with Sputnik in 1957, the international space race was on. Eventually, space exploration became, not a competition, but rather a collaboration. Also,...