The shaky jar!

Big balls and little balls, all mixed up. What will shaking do?

2

In the jar live BIG balls and little balls.

big ball little ball
3

Big balls leave tiny holes. Only little balls fit through!

4

Tap the jar to give it a little wiggle!

Tap the jar — watch the balls jiggle.

5

Now we shake hard. Will the balls MIX up, or SPLIT into stripes?

Tap your guess!