Offers detailed instructions for short experiments concerning earth sciences.

Bulging ball -- Tilt -- Mega-weight -- Deposits -- Dripper -- Wash away -- Prints -- Rub-a-dub -- Pop top -- Spreader -- Swingers -- Detector -- Run off -- Speedy -- Fly away -- Up and down -- Cold 'n hot -- Breezes -- More or less -- Vanishing water -- Tornado -- Currents.