- These are real Japanese one yen coins. They are worth about one New Zealand cent each.
- To Float them bend a paper clip into an L shape.
- Then use it to gently lower the coin onto the surface of the water.
- So how do you think this happens – remember scientist look closely and think about what they see.
- Try the same things with a New Zealand ten cent coin and it will never float.
- What do you think the difference is?