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.
When you change the units, do the numbers get bigger or smaller?
Work with numbers big and small to estimate and calculate various quantities in physical contexts.
Which units would you choose best to fit these situations?
Can you suggest a curve to fit some experimental data? Can you work out where the data might have come from?
How much energy has gone into warming the planet?
Work with numbers big and small to estimate and calculate various quantities in biological contexts.
Estimate these curious quantities sufficiently accurately that you can rank them in order of size
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?
Work out the numerical values for these physical quantities.
Could nanotechnology be used to see if an artery is blocked? Or is this just science fiction?
Make an accurate diagram of the solar system and explore the concept of a grand conjunction.
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.
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.
Which dilutions can you make using only 10ml pipettes?
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. . . .
Simple models which help us to investigate how epidemics grow and die out.
Can you work out what this procedure is doing?
Formulate and investigate a simple mathematical model for the design of a table mat.
Various solids are lowered into a beaker of water. How does the water level rise in each case?
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?
Where should runners start the 200m race so that they have all run the same distance by the finish?
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?
When a habitat changes, what happens to the food chain?
Can you work out which processes are represented by the graphs?
Can you draw the height-time chart as this complicated vessel fills with water?
Can you visualise whether these nets fold up into 3D shapes? Watch the videos each time to see if you were correct.
Work with numbers big and small to estimate and calulate various quantities in biological contexts.
If I don't have the size of cake tin specified in my recipe, will the size I do have be OK?
An observer is on top of a lighthouse. How far from the foot of the lighthouse is the horizon that the observer can see?
Analyse these beautiful biological images and attempt to rank them in size order.
This problem explores the biology behind Rudolph's glowing red nose.
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?
What shapes should Elly cut out to make a witch's hat? How can she make a taller hat?
Are these estimates of physical quantities accurate?
Explore the properties of perspective drawing.
Explore the relationship between resistance and temperature
How efficiently can you pack together disks?
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?
Is it really greener to go on the bus, or to buy local?
How would you go about estimating populations of dolphins?
The triathlon is a physically gruelling challenge. Can you work out which athlete burnt the most calories?
Can Jo make a gym bag for her trainers from the piece of fabric she has?
Does weight confer an advantage to shot putters?
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?
A problem about genetics and the transmission of disease.