oking?

[objects clanging, rattling, Mindy slurping] This is perfect.

- Oh, hi, Sean.

Were we making too much noise in here?

- No, just the right amount.

Keep it up.

It'’s helping me think of an idea.

- Really?

Okay.

[clanging, rattling, and slurping resume] [both scatting a horn melody] ♪ ♪ Eureka.

Whatever that means.

- Are you okay, Sean?

- Better than okay.

You guys just gave me the clue to how I can show how objects make different tones of sound.

Watch.

[high-, medium- and low-pitched clanging] - Sean, that'’s so cool.

The glasses make different sounds, depending on how much water is in them.

- I don'’t get why that happens.

- Maybe the sound waves slow down because they have to move through water?

- I get it.

Water'’s thicker than air.

- So, with less water, the sound comes out higher.

- That means the empty glass should make the highest sound.

[high-pitched clang] - Thanks, guys.

I think we figured it out.

- And the best part is... - You figured it out together.

- Yeah, you all helped me a lot.

- I don'’t get it.

I thought you needed quiet for your experiment.

- I thought so at first too, but it turned out that the right sounds were all around me the whole time.

Why didn'’t I notice it before?

- Well, just maybe... - You weren'’t listening.

- You'’re right, Mindy.

And I realize science isn'’t something I have to do by myself.

It'’s something to share.

The best ideas can come from talking to my best friends.

[clanging a musical melody] [all clanging a musical melody] ♪ ♪