We can’t see the air around us, but without it we wouldn’t have a blue sky.
Learn why the sky is blue, how the sun affects our atmosphere,
and put your favorite sunscreen to the test.

These girls are looking at UV-beads,
which change color depending on the wavelength of the light they are exposed
to. (Don’t worry,
you will still get to do this experiment in October!)
Cool Chemistry: From Cosmetics
to Crime Scenes
A day of interactive science experiments for girls in
grades 7 – 9.