Tennis Ball

How it works

• It is the lightest ball. It bounces well and almost any push moves it.
• Fans and bellows blow it about easily, and a single balloon can lift it slowly.
• It is small and round, so it fits into a tube and rolls through it.
• It is too light to press a weighing scale, and a lever switch needs a fast roll to flip.

Tips

• Light things react to wind at once, so keep it clear of any fan it should not follow.
• If it will not trigger a switch, try a heavier ball instead of a faster roll.

Where you'll meet it

You first meet it in level 2, Domino Dash, in chapter 1, Getting Rolling.

Works with

• Balloon
• Fan
• Bellows
• Tube
• Spring Pad