Make Your Own Solar Clock

by Robin Riordan

Name:_________________ Teacher:_________________ School:_________________

Materials Needed

  • A Sunny Day
  • A Pencil
  • A Compass
  • A print out of the Sun Clock Diagram


  1. Ask a grown-up to help you with this experiment. On a sunny day, go outside with a compass, pencil, and print-out of the Sun Clock Diagram. Put your compass on the ground and turn it so that the arrow and the “N” (for “North”) line up.
  2.  Follow the directions on the Sun Clock Diagram to find out how to line up the Sun Clock with your compass. Once you have the Sun Clock pointed in the right direction, you can figure out what time it is.


  1. Why does it matter what city I’m in?
  2. How does a shadow tell time?
  3. Why doesn’t the time on my Sun Clock exactly match the time on my watch?
  4. Why do I have to put the pencil on different spots for different times of the year?