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Season
- Season 1 1983-10-15
- Season 2 1984-10-13
- Season 3 1985-10-12
- Season 4 1986-10-11
- Season 5 1987-10-10
- Season 6 1988-10-15
- Season 7 1989-10-14
- Season 8 1990-10-13
- Season 9 1991-10-12
- Season 10 1992-10-10
- Season 11 1993-10-16
- Season 12 1994-10-15
- Season 13 1995-10-14
- Season 14 1996-10-12
- Season 15 1997-10-11
Season 15 Episode
- Season 7 Roller Coaster; Quicksand; Jelly-Side Down; Lemons; White Tiger
- Season 7 Bee Stings; Bowling; High-Speed Elevator; Lemons; Boa
- Season 7 Race Cars; Spider Webs; Lemons; Tropical Fish
- Season 7 Rain Forest; Buoyancy; Pouring Catsup; Lemons; Cold Remedies
- Season 7 Caffeine; Butterfly Migration; Autumn Leaves; Lemons; Doppler Effect; Sloth
- Season 7 Surfing; Geothermal/Volcanoes; Luau; Sugar Processing; Hawaiian Language; Eel
- Season 7 Whale Watch; Sunspots; Lemons; Skunk
- Season 7 Milky Way; Epilepsy; Lemons; Inventors Fair; Cuttlefish
- Season 7 DNA; Rube Goldberg Contest; Parrot Chat; Chewing Tin Foil; Seahorse
- Season 7 Marathons; Celestial Navigation; Cataracts Chat; Lemons; Echidna
- Season 7 Spinal Cord; Glue; Lemons; Dog Behavior
- Season 7 Cheese; Aging; Appendix Chat; Wolves
- Season 7 Supercomputer; Greenhouse Effect; House Creaking; Owl
Newton's Apple - Season 7 Episode 3 Race Cars; Spider Webs; Lemons; Tropical Fish
8.00 30 minutes 
