You may also like

problem icon

Temperature

Water freezes at 0°Celsius (32°Fahrenheit) and boils at 100°C (212°Fahrenheit). Is there a temperature at which Celsius and Fahrenheit readings are the same?

problem icon

Mixing Lemonade

Can you work out which drink has the stronger flavour?

problem icon

Does This Sound about Right?

Examine these estimates. Do they sound about right?

Fill Me Up

Stage: 3 Challenge Level: Challenge Level:1
We received these good sketches from Christian and Kodai from the Munich International School, though I don't think the graphs should have ever become horizontal.
 
It is also worth noting that the graphs didn't always take into account the varying widths of some of the containers - e.g. when the water reaches the narrow top of the volumetric flask, how will the height of the water level be affected by an increase in the volume of water?
 
We also received good sketches from Priya, Stephanie and Aishwarya, also from the Munich International School.