July 16, 2011: Family Astro: THE SUN

Luckily the clouds stayed away for the Family Astro event on July 16th because the topic was "The Sun". About 10 kids and 10 parents attended the event. Our first activity was tracing our shadow with chalk. We did this once at the beginning of the event, and once two hours later at the end in order to see how the position changed due to the apparent movement of the Sun through the sky. We then made scale models of the Sun and Earth out of paper to show the extreme size difference and large distance between the Sun and the Earth. Next we made our own "UV detector" bracelets out of UV color changing beads (a.k.a. Solar Energy Beads) and tested them outside and in a plastic bag covered in sunscreen. Participants then wrapped a map of the Earth around themselves and rotated like the Earth does, and we shone a lamp on them to simulate the Sun's light. This illustrated the cause of night and day and showed how it can be daytime on one side of the Earth and nighttime on the other. Finally, Graduate Student Duane Lee gave the kids and their parents a peek through a special solar telescope, and gave a tour of the telescope dome on the roof. Thanks to the volunteers for making this event a success!