| Episode # |
Original
Air Date |
Titles |
| |
| Season 1 |
| |
| 1. | 1-1 | 27 Jul 09 | Vortex Cannon |
| 2. | 1-2 | 03 Aug 09 | Jet Pack |
| 3. | 1-3 | 10 Aug 09 | Vacuum Climber |
| 4. | 1-4 | 17 Aug 09 | Rockets & Space |
| 5. | 1-5 | 24 Aug 09 | Adrenaline Junkie |
| 6. | 1-6 | 07 Sep 09 | Helicopters |
| 7. | 1-7 | 14 Sep 09 | Braking Systems & Origins of Speech |
| 8. | 1-8 | 21 Sep 09 | Microwave Death Ray & Gyroscopes |
| 9. | 1-9 | 28 Sep 09 | Spider Silk & Flight School |
| 10. | 1-10 | 05 Oct 09 | Toffee Powered Rocket & Sense of Smell |
| |
| Season 2 |
| |
| 11. | 2-1 | 15 Mar 10 | Land Speed, Oil and CSI |
| 12. | 2-2 | 22 Mar 10 | G-Force, Sport Relief and Atoms |
| 13. | 2-3 | 29 Mar 10 | Charles Darwin, Hydrofoil and 3D |
| 14. | 2-4 | 12 Apr 10 | Steel, Immortality, Dolphins |
| 15. | 2-5 | 19 Apr 10 | Ash, Ice and Carbon |
| 16. | 2-6 | 26 Apr 10 | Happiness, Climate Change and Avalanches |
| 17. | 2-7 | 03 May 10 | Free Diving, Horsepower and Antimatter |
| 18. | 2-8 | 10 May 10 | Smell, Life and Junk Fuel |
| |
| Season 3 |
| |
| 19. | 3-1 | 08 Sep 10 | Oil Spill Disaster |
| 20. | 3-2 | 15 Sep 10 | Sunburn, Smarter, Square Wheels |
| 21. | 3-3 | 22 Sep 10 | Jetlag, Solar System, Square Wheeled Motorbike |
| 22. | 3-4 | 29 Sep 10 | Weather, Wave Power and Evolution |
| 23. | 3-5 | 06 Oct 10 | Icelandic Volcano Eruption, Gambling in Vegas, Solar Furnaces |
| 24. | 3-6 | 13 Oct 10 | Ice Boat, Comets, Hypothermia |
| |
| Season 4 |
| |
| 25. | 4-1 | 14 Mar 11 | Japanese Earthquake and Tsunami |
| 26. | 4-2 | 21 Mar 11 | IVF, Playground Swing and a Special Mirror |
| 27. | 4-3 | 28 Mar 11 | Supersonic, Sticky Stuff and an Optical Illusion |
| 28. | 4-4 | 04 Apr 11 | Calories, Risk and Antibiotics |
| 29. | 4-5 | 11 Apr 11 | Light, Lasers and Citizen Science |
| 30. | 4-6 | 18 Apr 11 | GM Crops, Dust Allergy and Shattering Glass |
| 31. | 4-7 | 25 Apr 11 | Singing Road, Dad Dancing, DNA Family Tree |
| 32. | 4-8 | 02 May 11 | Recycling, GPS and Magic Tricks |
| |
| Season 5 |
| |
| 33. | 5-1 | 15 Aug 11 | Diamonds, Popcorn and Cancer |
| 34. | 5-2 | 22 Aug 11 | Rip Currents, Evolution and Making Gold |
| 35. | 5-3 | 29 Aug 11 | Rockets, Robots |
| 36. | 5-4 | 05 Sep 11 | Stem Cell Research, Memory |
| 37. | 5-5 | 12 Sep 11 | Bedbugs, Gravitational Lensing and Statistics |
| 38. | 5-6 | 19 Sep 11 | Tooth Decay and Refreezing Food |
| 39. | 5-7 | 26 Sep 11 | Helium Shortage, Radiation and Airport Security |
| 40. | 5-8 | 03 Oct 11 | Nuclear Power |
| |
| Season 6 |
| |
| 41. | 6-1 | 12 Mar 12 | Fuel for Free |
| 42. | 6-2 | 19 Mar 12 | Is Life Too Loud |
| 43. | 6-3 | 26 Mar 12 | Cyber Security |
| 44. | 6-4 | 02 Apr 12 | Crowds |
| 45. | 6-5 | 16 Apr 12 | Wireless Signals |
| 46. | 6-6 | 23 Apr 12 | Energy |
| 47. | 6-7 | 30 Apr 12 | Traffic |
| 48. | 6-8 | 14 May 12 | Humans and Dogs |
| |
| Season 7 |
| |
| 49. | 7-1 | 04 Mar 13 | Plastic |
| 50. | 7-2 | 11 Mar 13 | Antibiotics |
| 51. | 7-3 | 18 Mar 13 | Sugar |
| 52. | 7-4 | 25 Mar 13 | Safety |
| 53. | 7-5 | 08 Apr 13 | Food Technology |
| 54. | 7-6 | 15 Apr 13 | Under Pressure |
| 55. | 7-7 | 22 Apr 13 | Personal Medicine |
| 56. | 7-8 | 29 Apr 13 | Air Pollution |
| |
| Season 8 |
| |
| 57. | 8-1 | 10 Mar 14 | Energy |
| 58. | 8-2 | 17 Mar 14 | Cancer |
| 59. | 8-3 | 24 Mar 14 | Big Data |
| 60. | 8-4 | 31 Mar 14 | Aging |
| 61. | 8-5 | 07 Apr 14 | Flu |
| 62. | 8-6 | 14 Apr 14 | Flooding |
| 63. | 8-7 | 28 Apr 14 | Trains |
| 64. | 8-8 | 05 May 14 | Disaster Relief |
| |
| Specials |
| |
| S01. | 1-0 | 03 Dec 09 | Human Power Station |
| S02. | 2-0 | 21 Apr 10 | Can You Train Your Brain? |
| S04. | 4-0 | 10 Mar 11 | Bang Goes the Winter Weather |
| |
