Mystery object
| Iain’s latest post wins. When the ambient temperature changes, the density of the clear liquid in the cylinder changes - ie if the temperature increases, the particles in the clear liquid move further apart, reducing in density. The glass bulbs all have a different density. Those with a low density will move upwards when the density of the liquid around them decreases. Get it? I’ll show you with my Gallileo thermometer next week. In the meantime, you’ve all won points, both for first, second, and any other attempts. Well done! Check out the points table to see where you are at now.
I’ll post another question sometime over the weekend. |