What to do
- Have one child sit in a chair or on the floor with eyes closed or covered with hands.
- Approach this child with the clock, walking slowly from a distance from which the ticking is inaudible.
- Walk in a straight line toward the child.
- The child is to say, "Stop," when the ticking is heard. Mark the stopping point with a piece of masking tape. Put the child's name on the tape. Repeat with several children, havingone child be the walker and another the listener.
- Use string, a meter stick, or a ruler to measure the distances.
- Make a graph comparing various distances recorded.
- Discuss how other sounds in the room, building, or outside affect how well we can hear. Can we find a quieter place to play this game?
Want to do more?
Do the same activity using a ticking wristwatch or an alarm beeping wristwatch. Compare the audibility distances of the two timepieces.
Language you can use
clock, close, far, distance, measure, record, compare, hear, listen, sound
Things you will need
- a wind-up clock that has a clearly audible tick
- masking tape
- meter stick or ruler
- paper and pen