Over the weekend fireworks starting popping around my house. To my dog the sounds of fireworks are the sounds of the sky falling. To many people the sounds of fireworks is the sound of summer and celebration.

If you or your children are wondering how the fireworks actually work, take a look at the following videos from National Geographic and Discovery News.

Both of these videos could be the basis of a flipped science lesson. In this post I provided an overview of how to use five services to create flipped video lessons.