Invent a scoring system for a 'guess the weight' competition.
Can you deduce which Olympic athletics events are represented by the graphs?
Which countries have the most naturally athletic populations?
These Olympic quantities have been jumbled up! Can you put them back together again?
Simple models which help us to investigate how epidemics grow and die out.
Can you work out which processes are represented by the graphs?
To investigate the relationship between the distance the ruler drops and the time taken, we need to do some mathematical modelling...
Make an accurate diagram of the solar system and explore the concept of a grand conjunction.
Examine these estimates. Do they sound about right?
Is it really greener to go on the bus, or to buy local?
Can you sketch graphs to show how the height of water changes in different containers as they are filled?
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 your own pinhole camera for safe observation of the sun, and find out how it works.
Have you ever wondered what it would be like to race against Usain Bolt?
If I don't have the size of cake tin specified in my recipe, will the size I do have be OK?
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?
When a habitat changes, what happens to the food chain?
Can you work out which drink has the stronger flavour?
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. . . .
Imagine different shaped vessels being filled. Can you work out what the graphs of the water level should look like?
Explore the properties of isometric drawings.
Estimate these curious quantities sufficiently accurately that you can rank them in order of size
What shape would fit your pens and pencils best? How can you make it?
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?
Use trigonometry to determine whether solar eclipses on earth can be perfect.
How efficiently can you pack together disks?
Work with numbers big and small to estimate and calulate various quantities in biological contexts.
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?
An observer is on top of a lighthouse. How far from the foot of the lighthouse is the horizon that the observer can see?
Work out the numerical values for these physical quantities.
Which units would you choose best to fit these situations?
Are these estimates of physical quantities accurate?
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.
The triathlon is a physically gruelling challenge. Can you work out which athlete burnt the most calories?
How would you go about estimating populations of dolphins?
Does weight confer an advantage to shot putters?
Explore the relationship between resistance and temperature
How much energy has gone into warming the planet?
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?
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. . . .
Work with numbers big and small to estimate and calculate various quantities in biological contexts.
Can Jo make a gym bag for her trainers from the piece of fabric she has?
Can you visualise whether these nets fold up into 3D shapes? Watch the videos each time to see if you were correct.
Where should runners start the 200m race so that they have all run the same distance by the finish?
Analyse these beautiful biological images and attempt to rank them in size order.
How would you design the tiering of seats in a stadium so that all spectators have a good view?
This problem explores the biology behind Rudolph's glowing red nose.