SCIENCE CLASS #6- What if Everyone Flushed their Toilet at Once?
Let's talk about pressure! I WILL DO ONE FINAL CLASS NEXT WEEK, MAY 6TH!
Get your first KiwiCo Crate for FREE!!! https://www.kiwico.com/markrober
Here is a great link to donate to help with Covid-19 aid- https://tiltify.com/united-way/hopefromhome
