Investigate the molecular masses in this sequence of molecules and deduce which molecule has been analysed in the mass spectrometer.
Explore the distribution of molecular masses for various hydrocarbons
Which dilutions can you make using only 10ml pipettes?
Get some practice using big and small numbers in chemistry.
Many physical constants are only known to a certain accuracy. Explore the numerical error bounds in the mass of water and its constituents.
How much energy has gone into warming the planet?
Work out the numerical values for these physical quantities.
Work with numbers big and small to estimate and calculate various quantities in physical contexts.
PhysNRICH is the area of the StemNRICH site devoted to the mathematics underlying the study of physics
Making a scale model of the solar system
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. . . .
When you change the units, do the numbers get bigger or smaller?
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?
Make an accurate diagram of the solar system and explore the concept of a grand conjunction.
Explore the relationship between resistance and temperature
Estimate these curious quantities sufficiently accurately that you can rank them in order of size
Which units would you choose best to fit these situations?
To investigate the relationship between the distance the ruler drops and the time taken, we need to do some mathematical modelling...
Use trigonometry to determine whether solar eclipses on earth can be perfect.
In which Olympic event does a human travel fastest? Decide which events to include in your Alternative Record Book.
An observer is on top of a lighthouse. How far from the foot of the lighthouse is the horizon that the observer can see?
Is it really greener to go on the bus, or to buy local?
Have you ever wondered what it would be like to race against Usain Bolt?
Design and test a paper helicopter. What is the best design?