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?
Can you work out which drink has the stronger flavour?
Examine these estimates. Do they sound about right?
Have a look at the sets of four quantities below. Can you rank them in order from smallest to largest?
To help you to decide on your rankings, you may need to find extra information or carry out some experiments.
Can you provide convincing evidence of your final rankings?
Perhaps you might like to make 4 ranked quantities of your own to challenge a friend.
For more advanced science, see Approximately Certain.