A Printable Coloring Book for Valentine's Day
Hello and Happy Valentine's Day!

I made a little something for you guys. :) It's a printable coloring book all about how hearts work. And since sometimes it's not the most convenient thing to print out a miniature book and cut and fold it, I made a video version as well. The whole family helped, so the voices of all 5 of us are in the clip. I hope you enjoy it.  A regular paper-sized pdf of the book is attached and here's a link to the video: 

https://youtu.be/xV4Jw1n6cqE

Happy Valentine's Day. :) 

-Science Mom

Update: Blood is never blue! This little video and coloring book were what sparked the "What color is blood REALLY?" video.