Duck In A Cup
- Plastic cup
- Wet paper towels
- Drill or tool to punch a hole in the bottom of the cup
- Paper clip
- Drill or punch a hole in the center of the bottom of the cup. The hole needs to be big enough to put the string through.
- Tie one end of the string to the paper clip.
- Push the other end of the string through the hole in the bottom of the cup. The paper clip will stop the string from pulling all the way through.
- Hold your Duck In A Cup in one hand. This will allow the string to dangle beneath the cup.
- Wrap the wet paper towel around the string and pull down firmly in sharp little movements.
- Your Duck In A Cup should start quaking!
How it Works:
The string vibrates as you pull the wet paper towel down. While these vibrations are usually almost undetectable, the cup amplifies the sound making a loud and distinct duck quaking sound.
Make This A Science Project:
What happens if you use a different sized cup? What happens if you use a different length of string? What happens if you use a different type of string?