9-11

Inspired by Wallace and Grommit's Sheep-a-pult, this catapult launches soft wool 'sheep' or 'cows' or anything you choose to launch into the castle tower that you build. Ready, set, launch!

Dragons are made of parts borrowed from birds, reptiles, mammals and imagination. Assemble your own: from the old Norse traditions that Hiccup so carefully described. Or from the now 15 year-old Pokemon traditions of Japan. Make your dragon match your favorite or look like a beast no one else has ever seen.

Experiments from Arvind Gupta. Gupta is a brilliant Indian educator who translates the big ideas of science into toys that excite curiosity. Construct a magnetic top that makes magnetic objects dance. Discover which materials that are magnetic and which are not.
Test to see which work best.

Where else would you keep your gold? (well, pennies...)
Build a Bank in the shape of a Castle Keep. Shoot your savings into the opening. Elaborate your castle – add a dragon or a knight to keep your fortune safe.

Build an electric maze that challenges the steadiness of your hand.