Two Ways to Build a Lego Catapult - Frugal Fun For Boys
9 Apps for Young Scientists
Boys room! @ in-the-cornerin-the-corner
Balloon Powered Lego Car. Relates to the Draft Australian Curriculum: Technologies 2.4 Explore how mechanical, electrical, electronic technologies use pushes and pulls to create movement in systems and products and 2.7 Use design ideas, materials, components, tools and equipment to play, plan, safely produce and evaluate designed solutions based on personal criteria for technologies contexts.
Doing this today! -> Lego car with balloon power
Homemade pet jelly fish. that's about the neatest thing EVER. I did this with my 3rd, 4th and 5th grade class. Told them to bring in a bottle and a bag. Some of the kids brought it in and the rest of the kids thought it was dumb. After we did this project, the kids who thought it was dumb, didn't think so anymore. Kids who made them, named them and love them at home now.
Jellyfish in a bottle (from a plastic bag) -- so very, very cool
coin and balloon trick!