this is an activity on natural selection. Students capture the little green "silly willies" with spoons and then forks. For one round there are light green silly willies on a light green background with brown silly willies on the same landscape. The darker green bushes may make it difficult for students to pick them up with their spoons, or notice more importantly the light green silly willies and go for the brown silly willies. The other landscape is brown (with dark green bushes) and use the same two color of silly willies. With the brown landscape more light green silly willies will be captured.