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

Get some practice using big and small numbers in chemistry.

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

See how enormously large quantities can cancel out to give a good approximation to the factorial function.

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

Work out the numerical values for these physical quantities.

By exploring the concept of scale invariance, find the probability that a random piece of real data begins with a 1.

Which line graph, equations and physical processes go together?

This is our collection of tasks on the mathematical theme of 'Population Dynamics' for advanced students and those interested in mathematical modelling.

Build up the concept of the Taylor series

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

Get further into power series using the fascinating Bessel's equation.

Invent scenarios which would give rise to these probability density functions.

Here are several equations from real life. Can you work out which measurements are possible from each equation?

Explore the properties of matrix transformations with these 10 stimulating questions.

Formulate and investigate a simple mathematical model for the design of a table mat.

Look at the advanced way of viewing sin and cos through their power series.

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?

Was it possible that this dangerous driving penalty was issued in error?

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

Looking at small values of functions. Motivating the existence of the Taylor expansion.

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

Are these statistical statements sometimes, always or never true? Or it is impossible to say?

The probability that a passenger books a flight and does not turn up is 0.05. For an aeroplane with 400 seats how many tickets can be sold so that only 1% of flights are over-booked?

Which units would you choose best to fit these situations?

Explore the possibilities for reaction rates versus concentrations with this non-linear differential equation

Why MUST these statistical statements probably be at least a little bit wrong?

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

Use vectors and matrices to explore the symmetries of crystals.

Starting with two basic vector steps, which destinations can you reach on a vector walk?

Explore the meaning of the scalar and vector cross products and see how the two are related.

Which of these infinitely deep vessels will eventually full up?

Explore the shape of a square after it is transformed by the action of a matrix.

Could nanotechnology be used to see if an artery is blocked? Or is this just science fiction?

In Fill Me Up we invited you to sketch graphs as vessels are filled with water. Can you work out the equations of the graphs?

Which dilutions can you make using only 10ml pipettes?

How do you choose your planting levels to minimise the total loss at harvest time?

How would you go about estimating populations of dolphins?

Work with numbers big and small to estimate and calulate various quantities in biological contexts.

Match the descriptions of physical processes to these differential equations.

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

Andy wants to cycle from Land's End to John o'Groats. Will he be able to eat enough to keep him going?

Analyse these beautiful biological images and attempt to rank them in size order.