Explore the distribution of molecular masses for various hydrocarbons

Can you suggest a curve to fit some experimental data? Can you work out where the data might have come from?

chemNRICH is the area of the stemNRICH site devoted to the mathematics underlying the study of chemistry, designed to help develop the mathematics required to get the most from your study. . . .

PhysNRICH is the area of the StemNRICH site devoted to the mathematics underlying the study of physics

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

PhysNRICH is the area of the StemNRICH site devoted to the mathematics underlying the study of physics

An observer is on top of a lighthouse. How far from the foot of the lighthouse is the horizon that the observer can see?

Making a scale model of the solar system

Which dilutions can you make using only 10ml pipettes?

Which units would you choose best to fit these situations?

When you change the units, do the numbers get bigger or smaller?

Work with numbers big and small to estimate and calculate various quantities in physical contexts.

Make an accurate diagram of the solar system and explore the concept of a grand conjunction.

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?

Get some practice using big and small numbers in chemistry.

Estimate these curious quantities sufficiently accurately that you can rank them in order of size

Many physical constants are only known to a certain accuracy. Explore the numerical error bounds in the mass of water and its constituents.

Have you ever wondered what it would be like to race against Usain Bolt?

Work out the numerical values for these physical quantities.

Explore the relationship between resistance and temperature

Use trigonometry to determine whether solar eclipses on earth can be perfect.

To investigate the relationship between the distance the ruler drops and the time taken, we need to do some mathematical modelling...

Design and test a paper helicopter. What is the best design?

In which Olympic event does a human travel fastest? Decide which events to include in your Alternative Record Book.