Discover how Darwin discovered that birds on different islands of the same species had different beak shapes. 

A kit for a class of 25 students in 5 groups includes:

  • 5 pairs of scissors
  • 5 pairs of tweezers
  • 5 plastic spoons 
  • 5 plastic forks
  • 5 unsharpened pencils
  • 1 roll of scotch tape
  • 30 marbles
  • 30 1-inch pipe cleaners
  • 30 paperclips
  • 30 pieces of 2" x 2" paper

Find the complete lesson plan here.