If a ping pong ball represented......

At each scale, have audience predict what they think relative sizes and distances would be before you reveal the answer.

If Earth were shrunk to the size of a ping pong ball:
- how big would the moon be?
- how far away would the moon be?
- how fast would be the speed of light?
- how big would the sun be?
- how far awaw would the sun be?

If the Sun were shrunk to the size of a ping pong ball:
- how big would Earth be?
- How far away would Earth be?
- how fast would be the speed of light?
- how far away would be the closest star?

If we shrunk our galaxy to the size of a ping pong ball:
- how big would the Sun be?
- how far away is our nearest spiral galaxy?

Mary's notes

Additional resources provided: "Cosmic Questions: Our place in space and time, Educator's Guide"

Cosmic Survey