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. . . .

Can you rank these sets of quantities in order, from smallest to largest? Can you provide convincing evidence for your rankings?

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

Can you visualise whether these nets fold up into 3D shapes? Watch the videos each time to see if you were correct.

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?

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

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

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

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

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

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

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

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

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

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

Which dilutions can you make using only 10ml pipettes?

How would you design the tiering of seats in a stadium so that all spectators have a good view?

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

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

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

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

What shapes should Elly cut out to make a witch's hat? How can she make a taller hat?

Examine these estimates. Do they sound about right?

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

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

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.

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

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

Is there a temperature at which Celsius and Fahrenheit readings are the same?

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?

10 graphs of experimental data are given. Can you use a spreadsheet to find algebraic graphs which match them closely, and thus discover the formulae most likely to govern the underlying processes?

Various solids are lowered into a beaker of water. How does the water level rise in each case?

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

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

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

Use your skill and judgement to match the sets of random data.

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

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?

Where should runners start the 200m race so that they have all run the same distance by the finish?

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

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

Explore the relationship between resistance and temperature