1. Building a Lego universe Activities using Lego to illustrate a range of particle interactions

2. Structure of the atom

3. Isotopes

4. Now build some of your own atomic nuclei
mass number
LEGO model
atomic number
symbol, name

5. Radioactivity

6. Fusion

7. Fusion

8. Fission

9. Fission

10. Build your own universe

17. Particle Physics
A Physics Kit

19. Leptons

20. Rules for combinations
Baryon: 3 quarks Meson: 2 quarks (1 quark + 1 anti-quark)
No fractional charges in completed particle
Proton
Neutron
Anti-proton
Anti-neutron
Hydrogen atom
Helium nucleus
Helium atom

21. Baryons (3 quarks) n Σ Σ+ Neutron charge, Q = 0 charge, Q = +1
strangeness, S = -1
Neutron
charge, Q = 0
strangeness, S = 0 n Σ +

22. Baryons: 3 quarks 22

23. (1 quark + 1 anti-quark = 2 quarks)
Mesons
(1 quark + 1 anti-quark = 2 quarks)

24. Mesons: 1 quark + 1 anti-quark

25. More baryons (with more energy!)

26. More baryons (with more energy!)26

27. Beta decay

28. ‘Motion cafe’ app on iPad
Stop-motion animation of:
particle interactions
fission
fusion
The Big Bang

29. Beta decay

31. Lego Particle Physics: Beta decay of Cobalt-60

32. LEGO available from: http://ph.qmul.ac.uk/engagement/physics-kits or

33. Some LEGO models made out of the correct number of up quarks, down quarks and electrons.
A ‘water’ cocktail (H20)
An iron (Fe)
Superman (Kr)