This collection of STEM resources is based around the topic of units. Resources are listed in order of stage.

Temperature
problem
Favourite

Temperature

Age
11 to 14
Challenge level
2 out of 3

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

More or less?
problem

More or Less?

Age
14 to 16
Challenge level
1 out of 3
Are these estimates of physical quantities accurate?
Bigger or smaller?
problem

Bigger or Smaller?

Age
14 to 16
Challenge level
1 out of 3
When you change the units, do the numbers get bigger or smaller?
Choose your units
problem

Choose Your Units

Age
14 to 16
Challenge level
1 out of 3

Which units would you choose best to fit these situations?

A question of scale
problem
Favourite

A Question of Scale

Age
14 to 16
Challenge level
2 out of 3

Use your skill and knowledge to place various scientific lengths in order of size. Can you judge the length of objects with sizes ranging from 1 Angstrom to 1 million km with no wrong attempts?

Constantly changing
problem

Constantly Changing

Age
14 to 16
Challenge level
2 out of 3
Many physical constants are only known to a certain accuracy. Explore the numerical error bounds in the mass of water and its constituents.