Challenge Level

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

Challenge Level

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

Challenge Level

Which dilutions can you make using only 10ml pipettes?

Challenge Level

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

Challenge Level

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

Challenge Level

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. . . .

Challenge Level

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

Challenge Level

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

Challenge Level

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

Challenge Level

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

Challenge Level

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

Challenge Level

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

Challenge Level

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

Challenge Level

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

Challenge Level

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?

Challenge Level

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

Challenge Level

Which units would you choose best to fit these situations?

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

Challenge Level

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

Challenge Level

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

Challenge Level

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

Challenge Level

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?

Challenge Level

Get some practice using big and small numbers in chemistry.

Challenge Level

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

Challenge Level

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

Challenge Level

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

Challenge Level

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

Challenge Level

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

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.

Challenge Level

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

Challenge Level

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

Challenge Level

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

Challenge Level

Examine these estimates. Do they sound about right?

Challenge Level

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

Challenge Level

Explore the relationship between resistance and temperature

Challenge Level

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

Challenge Level

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

Challenge Level

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

Challenge Level

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

Challenge Level

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

Challenge Level

How would you go about estimating populations of dolphins?

Challenge Level

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?

Challenge Level

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

Challenge Level

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

Challenge Level

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