### There are 9 results

Broad Topics >

STEM mapping > STEM - Ratio And Proportion

##### Age 11 to 14 Challenge Level:

Can you work out which drink has the stronger flavour?

##### Age 11 to 14 Challenge Level:

Is it cheaper to cook a meal from scratch or to buy a ready meal? What difference does the number of people you're cooking for make?

##### Age 11 to 14 Challenge Level:

Make your own pinhole camera for safe observation of the sun, and find out how it works.

##### Age 14 to 16 Challenge Level:

Which dilutions can you make using only 10ml pipettes?

##### Age 11 to 14 Challenge Level:

When a habitat changes, what happens to the food chain?

##### Age 14 to 16 Challenge Level:

Can you work out the parentage of the ancient hero Gilgamesh?

##### Age 11 to 14 Challenge Level:

My recipe is for 12 cakes - how do I change it if I want to make a different number of cakes?

##### Age 14 to 18 Challenge Level:

Investigate the molecular masses in this sequence of molecules and deduce which molecule has been analysed in the mass spectrometer.

##### Age 14 to 16 Short Challenge Level:

What is the chance I will have a son who looks like me?