You know, for a science project, it looks very much like a box with holes in it.

7 seconds sound clip from The New Adventures of Winnie the Pooh - Tigger is the Mother of Invention / The Bug Stops Here (S3E8).

You can hear this line at 00:12:47.753 in the Blu-ray version of the TV Series.

Quote context

[...]

- We're sorry, Pooh Bear.

- We'll be delighted to assist in any recuperative maintenance you may require.

- No, thank you. Just help me clean up.

- Then perhaps we should pay a visit to Christopher Robin. He has a much larger house to untidy. And you can be even more delighted to see one another there.

- You got here just in time, Pooh.

- I've been working very hard on this. It's my very first science project.

- You know, for a science project, it looks very much like a box with holes in it.

- Silly old bear. The science isn't the box. It's what's inside the box.

- Christopher Robin, would you please come down here, and finish your homework?

- Okay, Mom. I'll be back as soon as I can.

- Let's peek inside and see what science looks like.

[...]