Here's a post with an annotated list of books and web sites for studying shadows. Also, this picture gives me an idea for a fun photo op for our unit. The kids could hold up signs to make the words Rosalind Franklin STEM Elementary and or their own names
These awesome photos by German photographer Christopher Hassler, shot in a tunnel using a fisheye lens, have such a convincing tweaked perspective that they might just test the mettle of acrophobic viewers.
I picked this because the picture shows alignment with the rocks leading up to the sun. And Balance because the sun looks as if its on the pile of rocks and all the other rocks are also balanced perfectly.