Water Bottle Submarines

These simple upcycled water bottle submarines are a great way to explore buoyancy, air pressure, and density. When placed in water, the bottle fills with water, pulling it down below the surface, then, by blowing air through an attached straw, the water is forced out and the submarine rises again. Not only is this a…

World Space Week Coding Challenges

Since so many of my patrons love astronomy, astronauts and space in general, I love to customize my programs for World Space Week. This year I drafted a list of computer programming challenges for my Coding Club. Featuring space themes, these activities are all self-led tutorials. I’ve included projects for all ages and experience levels.