WEDNESDAY, November 4, 2009 - Sundials and Seasons/Making a Sundial with Dr. Bob Schweikert
Targeted Audience: students in grades 4 – 12
Join Dr. Bob Schweikert as he discusses Sundials and Seasons and helps your students make their own Sundials.
a) SUNDIALS: Have you ever wondered how people worked out their ideas for telling the time? They used the position of the Sun in the sky. They used sundials to tell the time by looking at the shadow cast by the Sun as it shines on the pointer of a sundial.
b) SEASONS: The Earth’s tilt has an effect on our seasons in the angle at which the sunlight strikes the surface of the Earth. The greater the angle, the more dispersed and less concentrated the sunlight is on that particular point. In Summer the Sun appears to be high in the sky and feels very warm. In Winter the Sun appears a lot lower in the sky and feels a lot cooler than in Summer.
Time: 9:00 and 10:00 AM (CENTRAL time zone)
Format: 45-minutes formatted into 30-minute presentation, and then 15-20 minute Q & A
Cost: $75 per site
Questions: Chandra Allison, at (615) 322-6511 or email chandra.allison@vanderbilt.edu
REGISTER: http://www.vanderbilt.edu/virtualschool/registration.htm
