Science Evangelist and Former Associate Professor of Materials Science at Yale University, Dr. Ainissa Ramirez, explains how sandwiches of silicon (in solar cells) can create energy from sunlight.

The sun? Elements? Sandwiches? Yes, please! My almost four year old kiddo really liked this one for all of those reasons. He also loved how the solar-powered cars took off so quickly! 

Dr Ainissa Ramirez’s other Material Marvels videos are just as engaging as this one. We liked her demonstration of how the space shuttle’s ceramic tiles absorb heat, too. For more, you can find her here on Twitter.

Watch more materials science videos.

via Scientific American’s Psi-Vid.