First, we painted the top half of the paper in shades of blue to represent the sky. The bottom half we painted in shades of green for grass. While the paint was still wet, they used paint scrapers to make patterns and designs in the paint. Over the next few days, they tore tissue paper and glued with watered down glue to represent all kinds of animals, trees, clouds, a sun and rainbow. This hands on activity is good for all grades.
Simple eyes have only one facet or lens and can distinguish no images, only light and dark.
The complex eyes have dozens to thousands of facets. They cannot move or focus any of their eyes. Stand 24 flexible straws together on a flat surface, flexible sections up. Wrap the flexible ends with the tube and secure with tape. We had several stations set up and several tools at each station.