What to do:

1. Weigh 70g of glass beads into each jar.
   
   
2. Pour the beads through a funnel into each jar.
   
   
3. Pour just enough white paint into the bottles to cover the beads.
   
   
4. Add a level teaspoon of the pigment through a clean funnel in each jar.
   
   
5. Using a dowelling rod, mix the pigment into the white paint for about 30 seconds.
   
   
6. Dip a dry paint brush into one of the jars and smoothly and evenly paint a strip on your paper.
   
   
7. Put the lid on the bottle and shake it as hard as you can (like a cocktail shaker!) for 10 seconds. Let everyone in your group do this.
   
   
8. Dip a clean dry brush again and smoothly and evenly paint a strip next to the first one on your paper, so the strips are just touching (without them mixing together).
   
   
9. Repeat the shaking and painting for each jar - but everyone in the group counts to 15 seconds when shaking the second jar and to 20 seconds when shaking the third jar.