3. Tie a string so it runs from the top of the box to the bottom of the box.

4. Start by tying a string to a paper clip on the outside of the box at the top.

5. Thread the string through the bottom of the box and tie the string to a paper clip on the bottom of the box.

6. Place 4 or 5 paper clips on the string inside the box.

7. Place the box on a table or some other object you can strike to make it vibrate.

8. Strike the table hard enough to cause energy waves to travel through it to the box,

9. Move your box to another surface and see if you can make the paper clips vibrate on these surfaces.

10. Change the experiment by using a different thickness of string.

11. Change the experiment by using different sizes of paper clips.​