Simple models which help us to investigate how epidemics grow and die out.

Use the computer to model an epidemic. Try out public health policies to control the spread of the epidemic, to minimise the number of sick days and deaths.

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

How would you go about estimating populations of dolphins?

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

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

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

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

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

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

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?

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

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

Can you sketch graphs to show how the height of water changes in different containers as they are filled?

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

Which dilutions can you make using only 10ml pipettes?

This problem explores the biology behind Rudolph's glowing red nose.

How do you write a computer program that creates the illusion of stretching elastic bands between pegs of a Geoboard? The answer contains some surprising mathematics.

Which units would you choose best to fit these situations?

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

Can you deduce which Olympic athletics events are represented by the graphs?

Investigate circuits and record your findings in this simple introduction to truth tables and logic.

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

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?

Learn about the link between logical arguments and electronic circuits. Investigate the logical connectives by making and testing your own circuits and fill in the blanks in truth tables to record. . . .

Examine these estimates. Do they sound about right?

What shape would fit your pens and pencils best? How can you make it?

If I don't have the size of cake tin specified in my recipe, will the size I do have be OK?

Can you work out which processes are represented by the graphs?

Get some practice using big and small numbers in chemistry.

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?

Is it really greener to go on the bus, or to buy local?

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

The triathlon is a physically gruelling challenge. Can you work out which athlete burnt the most calories?

Invent a scoring system for a 'guess the weight' competition.

Two trains set off at the same time from each end of a single straight railway line. A very fast bee starts off in front of the first train and flies continuously back and forth between the. . . .

Practice your skills of measurement and estimation using this interactive measurement tool based around fascinating images from biology.

Explore the relationship between resistance and temperature

Can Jo make a gym bag for her trainers from the piece of fabric she has?

These Olympic quantities have been jumbled up! Can you put them back together again?

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

Can you draw the height-time chart as this complicated vessel fills with water?

Imagine different shaped vessels being filled. Can you work out what the graphs of the water level should look like?