Sezon 5
Bölümler
1 Diamonds, Popcorn and Cancer 15 Ağu 2011 
2 Rip Currents, Evolution and Making Gold 22 Ağu 2011 
3 Rockets, Robots 29 Ağu 2011 
4 Stem Cell Research, Memory 5 Eyl 2011 
5 Bedbugs, Gravitational Lensing and Statistics 12 Eyl 2011 
6 Tooth Decay and Refreezing food 19 Eyl 2011 
7 Helium Shortage, Radiation and Airport Security 26 Eyl 2011 
8 Nuclear Power 3 Eki 2011