Sezon 4
Bölümler
1 Flight Trainers; Snake Bite; Hedgehoh Chat; Cold Remedies 11 Eki 1986 2 Caves; Lasers; Skin Wrinkle Chat; Whale Birth 18 Eki 1986 3 Hypothermia; Moon; Voice Change Chat; Yak 25 Eki 1986 4 Sponges; Bed of Nails; Probability; Pelicans 1 Kas 1986 5 Bees; Blood Pressure; Bruises Chat; Hiccups 8 Kas 1986 6 Telescopes; Food Myths; Manatee 15 Kas 1986 7 Fossil Dig; Mirrors; Frostbite Chat; Elephants 22 Kas 1986 8 Wind Blow; Baldness; Soda Pop Fizz Chat; Cranes 29 Kas 1986 9 Alcohol; Helium Balloons; Backache Chat; Roller Coaster; Snow Monkeys 6 Ara 1986 10 Diabetes; Frozen Food; Flat Feet Chat; Battery Inventions; Alligators 13 Ara 1986 11 Immune System; Skiing; Blimp; Beaver 20 Ara 1986 12 Pterodactyl; Rube Goldberg; Black Box Chat; Quickies 27 Ara 1986 13 Baseball Bats; Polarized Light; Dreams Chat; Inventors Fair; Falcon 3 Oca 1987