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?
Estimate these curious quantities sufficiently accurately that you can rank them in order of size
When you change the units, do the numbers get bigger or smaller?
Which dilutions can you make using only 10ml pipettes?
Work with numbers big and small to estimate and calculate various quantities in biological contexts.
Work out the numerical values for these physical quantities.
How much energy has gone into warming the planet?
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 physical contexts.
Many physical constants are only known to a certain accuracy. Explore the numerical error bounds in the mass of water and its constituents.
Get some practice using big and small numbers in chemistry.
Make an accurate diagram of the solar system and explore the concept of a grand conjunction.
Examine these estimates. Do they sound about right?
To investigate the relationship between the distance the ruler drops and the time taken, we need to do some mathematical modelling...
When a habitat changes, what happens to the food chain?
Could nanotechnology be used to see if an artery is blocked? Or is this just science fiction?
In which Olympic event does a human travel fastest? Decide which events to include in your Alternative Record Book.
Make your own pinhole camera for safe observation of the sun, and find out how it works.
Simple models which help us to investigate how epidemics grow and die out.
Can you sketch graphs to show how the height of water changes in different containers as they are filled?
The triathlon is a physically gruelling challenge. Can you work out which athlete burnt the most calories?
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. . . .
Are these estimates of physical quantities accurate?
Work with numbers big and small to estimate and calulate various quantities in biological contexts.
These Olympic quantities have been jumbled up! Can you put them back together again?
This problem explores the biology behind Rudolph's glowing red nose.
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.
Have you ever wondered what it would be like to race against Usain Bolt?
How would you go about estimating populations of dolphins?
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
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.
Explore the properties of isometric drawings.
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?
Explore the properties of perspective drawing.
Can you work out what this procedure is doing?
Investigate circuits and record your findings in this simple introduction to truth tables and logic.
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?
If I don't have the size of cake tin specified in my recipe, will the size I do have be OK?
Can you work out which drink has the stronger flavour?
Formulate and investigate a simple mathematical model for the design of a table mat.
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?
Invent a scoring system for a 'guess the weight' competition.
A problem about genetics and the transmission of disease.
Can you deduce which Olympic athletics events are represented by the graphs?
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?
An observer is on top of a lighthouse. How far from the foot of the lighthouse is the horizon that the observer can see?