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?
Get some practice using big and small numbers in chemistry.
Which units would you choose best to fit these situations?
Work out the numerical values for these physical quantities.
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.
Make an accurate diagram of the solar system and explore the concept of a grand conjunction.
Estimate these curious quantities sufficiently accurately that you can rank them in order of size
Many physical constants are only known to a certain accuracy. Explore the numerical error bounds in the mass of water and its constituents.
When you change the units, do the numbers get bigger or smaller?
How much energy has gone into warming the planet?
Work with numbers big and small to estimate and calculate various quantities in physical contexts.
Which dilutions can you make using only 10ml pipettes?
Can you suggest a curve to fit some experimental data? Can you work out where the data might have come from?
Work with numbers big and small to estimate and calculate various quantities in biological contexts.
Could nanotechnology be used to see if an artery is blocked? Or is this just science fiction?
Where should runners start the 200m race so that they have all run the same distance by the finish?
Can you work out which drink has the stronger flavour?
Make your own pinhole camera for safe observation of the sun, and find out how it works.
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?
Examine these estimates. Do they sound about right?
Can you work out what this procedure is doing?
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?
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.
Formulate and investigate a simple mathematical model for the design of a table mat.
Explore the properties of perspective drawing.
Use trigonometry to determine whether solar eclipses on earth can be perfect.
Andy wants to cycle from Land's End to John o'Groats. Will he be able to eat enough to keep him going?
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
Various solids are lowered into a beaker of water. How does the
water level rise in each case?
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?
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. . . .
What shapes should Elly cut out to make a witch's hat? How can she make a taller hat?
These Olympic quantities have been jumbled up! Can you put them back together again?
What shape would fit your pens and pencils best? How can you make it?
Investigate circuits and record your findings in this simple introduction to truth tables and logic.
How would you design the tiering of seats in a stadium so that all spectators have a good view?
Explore the properties of isometric drawings.
This problem explores the biology behind Rudolph's glowing red nose.
Can you visualise whether these nets fold up into 3D shapes? Watch the videos each time to see if you were correct.
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 Jo make a gym bag for her trainers from the piece of fabric she has?
When a habitat changes, what happens to the food chain?
Analyse these beautiful biological images and attempt to rank them in size order.
If I don't have the size of cake tin specified in my recipe, will the size I do have be OK?
Imagine different shaped vessels being filled. Can you work out
what the graphs of the water level should look like?
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?
An observer is on top of a lighthouse. How far from the foot of the lighthouse is the horizon that the observer can see?
Can you deduce which Olympic athletics events are represented by the graphs?