Newton's AppleSeason 71989 · 13 episodesEpisodes1Roller Coaster; Quicksand; Jelly-Side Down; Lemons; White Tiger2Bee Stings; Bowling; High-Speed Elevator; Lemons; Boa3Race Cars; Spider Webs; Lemons; Tropical Fish4Rain Forest; Buoyancy; Pouring Catsup; Lemons; Cold Remedies5Caffeine; Butterfly Migration; Autumn Leaves; Lemons; Doppler Effect; Sloth6Surfing; Geothermal/Volcanoes; Luau; Sugar Processing; Hawaiian Language; Eel7Whale Watch; Sunspots; Lemons; Skunk8Milky Way; Epilepsy; Lemons; Inventors Fair; Cuttlefish9DNA; Rube Goldberg Contest; Parrot Chat; Chewing Tin Foil; Seahorse10Marathons; Celestial Navigation; Cataracts Chat; Lemons; Echidna11Spinal Cord; Glue; Lemons; Dog Behavior12Cheese; Aging; Appendix Chat; Wolves13Supercomputer; Greenhouse Effect; House Creaking; OwlSeason 1Season 2Season 3Season 4Season 5Season 6Season 8Season 9Season 10Season 11Season 12Season 13Season 14Season 15