Take a look at this.

What fun.

Would you like to see it again, a little slower.

Oh, dominoes can be fun to play with.

You know, you don't exactly stack them.

You really line them up and then tip the first one over and all of the other dominoes fall over one at a time.

Let's try it kind of line some up here.

There's one, two, three, four, four, five, six... Is that enough?

Well, maybe two more.

Seven.

And eight.

the trick is to get them spaced close enough so that they knock each other down, but not too close.

So let's try it.

Once you've got the hang of it, you can make patterns like this.

[♪♪♪] Oops, that can happen, you know [♪♪♪] Take a look.

I'm going to knock down both rows with this one domino.

Oh, that is fun.

Why don't you try it sometimes.

Oh, have you ever had fun stacking things up and knocking them over?

Well, try this sometime.

Recycles some paper cups out of the trash and stack them up, then knock them over like this.

You know, this would be a lot more fun with some music.

Hey, I've got an idea.

I'm going to say that the cups, while the music is playing, then when the music stops, I'll knock them over.

Yes, One more time.

This is fun, I tell you.

I think I'd like to do this a lot.

What else do you have around the house that you could build with?

I'll bet you can think of lots of things to stack and knock over.