How can the sun and moon disappear?
Experiment 1: blocking the sun
Experiment 2: hiding in the shadows
Experiment 3: changing its shape
Experiment 4: passing overhead
Experiment 5: circling around
What can a shadow tell you?
Experiment 6: telling the time
Experiment 7: traveling in a straight line
Fun with the sun and moon
Experiment 8: sending messages.
