This activity was done in class, it's about biomagnification. Gold clips represented toxic, Green clips represented phytoplankton, Blue represented zooplankton, Purple represent small fish, and Pink represented the bigger fish. According to the picture above, it's a food chain in which pink(big fish) eats 1 purple (small fish) while the purple is eating the 3 blue (zooplankton) and zooplankton is eating 3 green (phytoplankton) and to make green, it is made by 3 gold (toxic). According to get these numbers, you have to roll a dice in which it starts with gold, then so on. The toppest one in the food chain, gets 10 in total from purple to gold, making it also to get the toxication from eating one fish.