https://www.michiganlearning.org/wp-content/uploads/2022/01/DIY-Science-Time-10-Friction.pdfMister C and the Science Crew build hovercrafts to explore friction.
Death Valley is one of the driest places in North America - but only about a 100 miles from a forest of Giant Sequoia trees. How can these two completely different ecosystems exist right next to each other?