Work with numbers big and small to estimate and calculate various quantities in physical contexts.
Get some practice using big and small numbers in chemistry.
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?
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.
Work with numbers big and small to estimate and calculate various quantities in biological contexts.
How much energy has gone into warming the planet?
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
Make your own pinhole camera for safe observation of the sun, and find out how it works.
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.
Where should runners start the 200m race so that they have all run the same distance by the finish?
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?
Can you work out what this procedure is doing?
Examine these estimates. Do they sound about right?
Use trigonometry to determine whether solar eclipses on earth can be perfect.
Explore the relationship between resistance and temperature
When you change the units, do the numbers get bigger or smaller?
Are these estimates of physical quantities accurate?
Which units would you choose best to fit these situations?
Analyse these beautiful biological images and attempt to rank them in size order.
This problem explores the biology behind Rudolph's glowing red nose.
Could nanotechnology be used to see if an artery is blocked? Or is this just science fiction?
To investigate the relationship between the distance the ruler drops and the time taken, we need to do some mathematical modelling...
Formulate and investigate a simple mathematical model for the design of a table mat.
In which Olympic event does a human travel fastest? Decide which events to include in your Alternative Record Book.
How would you go about estimating populations of dolphins?
Work with numbers big and small to estimate and calulate various quantities in biological contexts.
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. . . .
Explore the properties of isometric drawings.
Can you work out which drink has the stronger flavour?
Explore the properties of perspective drawing.
Andy wants to cycle from Land's End to John o'Groats. Will he be able to eat enough to keep him going?
How efficiently can you pack together disks?
Practice your skills of measurement and estimation using this interactive measurement tool based around fascinating images from biology.
Is it really greener to go on the bus, or to buy local?
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?
What shapes should Elly cut out to make a witch's hat? How can she make a taller hat?
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. . . .
Simple models which help us to investigate how epidemics grow and die out.
If I don't have the size of cake tin specified in my recipe, will the size I do have be OK?
When a habitat changes, what happens to the food chain?
Investigate circuits and record your findings in this simple introduction to truth tables and logic.
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.
Imagine different shaped vessels being filled. Can you work out what the graphs of the water level should look like?
Can you visualise whether these nets fold up into 3D shapes? Watch the videos each time to see if you were correct.
How would you design the tiering of seats in a stadium so that all spectators have a good view?
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?
Which countries have the most naturally athletic populations?