Which investigation provides evidence relating to sound and vibrations?

Investigation 1: Jack hits a tuning fork on a desk and watches it move back and forth and hears a noise when he moves close. Jack observes a still tuning fork and hears nothing.

Investigation 2: Amber feels rumbling and hears growling in her stomach so she eats mac and cheese for lunch.

Which investigation does NOT provide evidence relating to sound and vibrations?

Investigation 1: Austin plays a song in the talent show with a guitar he's made. He put four rubber bands over the opening of an empty tissue box and plucks them. When they move it makes music.

Investigation 2: Kim treats her friends poorly and says mean things to them in the science lab. She was trying to hit them with the ruler and snap them with rubber bands. They asked her to stop.

Evidence from investigations can show the relationship between sound and vibrations.

Mrs. Allen's science class took four different objects and hit them on a table. They observed the objects to see if they made a noise or moved when struck.

Which object(s) would show evidence of vibrations and sound having a relationship?

Mr. Petersen covers a large bowl with plastic wrap. He puts rainbow sprinkles on top of the plastic. The class observes that the sprinkles are just sitting on the plastic. He leaned down and made a loud, humming sound right next to the sprinkles. The sprinkles started to jump around! He repeated the humming, and the class wrote down their observations.

Which two sentences provide evidence that relates sound and vibrations?

What is evidence? Example: Mrs. Jacobs required us to write down the evidence we found to support our answer.

Sound and vibrations are separate and have no relationship.

What are vibrations? Example: The rubber band's vibrations caused a sound to be heard.

Sadie and Allison have to plan a science investigation that will provide evidence of the relationship between sound and vibrations. Which plan would be the best choice?

Why did the ruler hanging off the table make a noise when struck?