Can you work out what this procedure is doing?
Where should runners start the 200m race so that they have all run the same distance by the finish?
Explore the properties of isometric drawings.
Can you visualise whether these nets fold up into 3D shapes? Watch the videos each time to see if you were correct.
Make your own pinhole camera for safe observation of the sun, and find out how it works.
Could nanotechnology be used to see if an artery is blocked? Or is this just science fiction?
Examine these estimates. Do they sound about right?
What shape would fit your pens and pencils best? How can you make it?
Is it really greener to go on the bus, or to buy local?
Make an accurate diagram of the solar system and explore the concept of a grand conjunction.
Use trigonometry to determine whether solar eclipses on earth can be perfect.
How would you design the tiering of seats in a stadium so that all spectators have a good view?
Can you sketch graphs to show how the height of water changes in different containers as they are filled?
Many physical constants are only known to a certain accuracy. Explore the numerical error bounds in the mass of water and its constituents.
When a habitat changes, what happens to the food chain?
Work out the numerical values for these physical quantities.
Estimate these curious quantities sufficiently accurately that you can rank them in order of size
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?
Imagine different shaped vessels being filled. Can you work out what the graphs of the water level should look like?
Can you suggest a curve to fit some experimental data? Can you work out where the data might have come from?
If I don't have the size of cake tin specified in my recipe, will the size I do have be OK?
Formulate and investigate a simple mathematical model for the design of a table mat.
Get some practice using big and small numbers in chemistry.
Which dilutions can you make using only 10ml pipettes?
How much energy has gone into warming the planet?
Explore the properties of perspective drawing.
Work with numbers big and small to estimate and calculate various quantities in physical contexts.
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?
Which units would you choose best to fit these situations?
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. . . .
When you change the units, do the numbers get bigger or smaller?
Can you work out which drink has the stronger flavour?
Work with numbers big and small to estimate and calculate various quantities in biological contexts.
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.
In which Olympic event does a human travel fastest? Decide which events to include in your Alternative Record Book.
How efficiently can you pack together disks?
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?
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.
What shapes should Elly cut out to make a witch's hat? How can she make a taller hat?
Analyse these beautiful biological images and attempt to rank them in size order.
Are these estimates of physical quantities accurate?
Have you ever wondered what it would be like to race against Usain Bolt?
Starting with two basic vector steps, which destinations can you reach on a vector walk?
Can Jo make a gym bag for her trainers from the piece of fabric she has?
Can you deduce which Olympic athletics events are represented by the graphs?
The triathlon is a physically gruelling challenge. Can you work out which athlete burnt the most calories?
How would you go about estimating populations of dolphins?
Explore the relationship between resistance and temperature
Andy wants to cycle from Land's End to John o'Groats. Will he be able to eat enough to keep him going?
This problem explores the biology behind Rudolph's glowing red nose.