Make your own pinhole camera for safe observation of the sun, and find out how it works.
Examine these estimates. Do they sound about right?
Make an accurate diagram of the solar system and explore the concept of a grand conjunction.
Explore the properties of isometric drawings.
Can you work out which drink has the stronger flavour?
Could nanotechnology be used to see if an artery is blocked? Or is this just science fiction?
Work with numbers big and small to estimate and calculate various quantities in biological contexts.
To investigate the relationship between the distance the ruler drops and the time taken, we need to do some mathematical modelling...
Many physical constants are only known to a certain accuracy. Explore the numerical error bounds in the mass of water and its constituents.
Work out the numerical values for these physical quantities.
Estimate these curious quantities sufficiently accurately that you can rank them in order of size
Can you sketch graphs to show how the height of water changes in
different containers as they are filled?
Can you work out what this procedure is doing?
When a habitat changes, what happens to the food chain?
Where should runners start the 200m race so that they have all run the same distance by the finish?
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. . . .
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?
Which dilutions can you make using only 10ml pipettes?
How much energy has gone into warming the planet?
If I don't have the size of cake tin specified in my recipe, will the size I do have be OK?
Get some practice using big and small numbers in chemistry.
Use trigonometry to determine whether solar eclipses on earth can be perfect.
Can you deduce which Olympic athletics events are represented by the graphs?
Which units would you choose best to fit these situations?
How would you go about estimating populations of dolphins?
Are these estimates of physical quantities accurate?
Work with numbers big and small to estimate and calculate various quantities in physical contexts.
When you change the units, do the numbers get bigger or smaller?
These Olympic quantities have been jumbled up! Can you put them back together again?
Work with numbers big and small to estimate and calulate various quantities in biological 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?
Invent a scoring system for a 'guess the weight' competition.
Analyse these beautiful biological images and attempt to rank them in size order.
Explore the relationship between resistance and temperature
Explore the properties of perspective drawing.
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?
Water freezes at 0°Celsius (32°Fahrenheit) and boils at 100°C (212°Fahrenheit). Is there a temperature at which Celsius and Fahrenheit readings are the same?
What shape would fit your pens and pencils best? How can you make it?
In which Olympic event does a human travel fastest? Decide which events to include in your Alternative Record Book.
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?
Have you ever wondered what it would be like to race against Usain Bolt?
Is it really greener to go on the bus, or to buy local?
Which countries have the most naturally athletic populations?
A problem about genetics and the transmission of disease.
This problem explores the biology behind Rudolph's glowing red nose.
How would you design the tiering of seats in a stadium so that all spectators have a good view?
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.
Practice your skills of measurement and estimation using this interactive measurement tool based around fascinating images from biology.