Sezon 9
Bölümler
1 Aerobic Exercise; Swimming/Weightlifting; Luge/Skating; Softball/Racewalking 12 Eki 1991 2 Solar Cars; Steroids; The Amazing Kreskin; Foot Fall Asleep; Miniature Horses 19 Eki 1991 3 Murder Mystery; Ted Nugent; Bats 26 Eki 1991 4 Cancer Causes; Frisbees; Computer Virus 2 Kas 1991 5 Sewers; Cancer Treatments; Dick Cavett; Porcupines 9 Kas 1991 6 Mapping the Dig Site; Dating the Bones; Assembling Dinosaur 16 Kas 1991 7 Domed Stadium; Photosynthesis; Polarized Sunglasses; Amusement Park 23 Kas 1991 8 Tears; Slinky Physics; Barcodes; Aspirin; Camels 30 Kas 1991 9 Soviet Space; Sky Blue; Inventors Fair; Llamas 7 Ara 1991 10 Acid Rain; Highjump; Potholes; Goats 14 Ara 1991 11 Medical Quackery; Microwave Ovens; Dollar Changer; Golden Eagles 21 Ara 1991 12 Telecommunications; Solar Eclipse; Blimp; Bear Cubs 28 Ara 1991 13 Hip Replacement; Airbags; Paper Cuts; Potbelly Pigs 4 Oca 1992