Notes

Experiments: Egg-shell strong, Bridges and beams, Balancing act, Rolling and sliding, Reel gears, Playing with water, On the rebound, More about gears, Paper clock, Going round in circles, Comic shapes, Lifting made easy, Floating power, Slopes and screws, Weather station, Switch-back, Bangeroo, Loop-the-loop, Air drag, Jet gun, Electric motor, Atom-sorter