Materials:
- Empty plastic water bottle
- Large bowl filled with water
- Spoons, forks, other metallic objects used to make sound
- Your listening ears!
- An adult science helper!
Directions: Take the plastic water bottle and cut the bottom off. There should be only the neck of the bottle and a large opening on the bottom after cutting. Then, submerge the small opening (the part you drink out of) in the bowl of water. Hold it to your ear. Then, have a helper submerge the spoons/forks under the water and hit them together. Does it sound different? Does it sound sharper? That’s the science of sound!