<iframe width="580" height="385" src="https://www.youtube.com/embed/WnDDfuZNGM0" frameborder="0" allowfullscreen></iframe> <br>Wonder why rockets blast off? Explore this concept with this Straw Rockets for kids STEM activity by making your own tubes, using ... <br><a href="https://www.youtube.com/watch?v=WnDDfuZNGM0">source</a>
