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Examine these estimates. Do they sound about right?

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Can you sketch graphs to show how the height of water changes in different containers as they are filled?

# Temperature

##### Stage: 3 Challenge Level:

Temperature is often measured in degrees Celsius,$^\circ C$, or degrees Fahrenheit,$^\circ F$.

The freezing point of water is $0^\circ$C and $32^\circ$F.
The boiling point of water is $100^\circ$C and $212^\circ$F.

Is there a temperature at which Celsius and Fahrenheit readings are the same?

Can you describe a way of converting Fahrenheit readings into Celsius?

Can you describe a way of converting Celsius readings into Fahrenheit?

An extension challenge:

Scientists often use the Kelvin scale of temperature, where the freezing point of water is $273.15^\circ K$ and the boiling point of water is $373.15^\circ K$.

Is there a temperature at which Kelvin and Fahrenheit readings are the same?
Is there a temperature at which Kelvin and Celsius readings are the same?

Can you describe ways of converting Kelvin readings into Fahrenheit and Celsius readings?