Make your own pinhole camera for safe observation of the sun, and find out how it works.
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?
Andy wants to cycle from Land's End to John o'Groats. Will he be able to eat enough to keep him going?
Various solids are lowered into a beaker of water. How does the water level rise in each case?
Can you sketch graphs to show how the height of water changes in different containers as they are filled?
Imagine different shaped vessels being filled. Can you work out what the graphs of the water level should look like?
Which dilutions can you make using only 10ml pipettes?
If I don't have the size of cake tin specified in my recipe, will the size I do have be OK?
Have you ever wondered what it would be like to race against Usain Bolt?
Many physical constants are only known to a certain accuracy. Explore the numerical error bounds in the mass of water and its constituents.
Starting with two basic vector steps, which destinations can you reach on a vector walk?
Work with numbers big and small to estimate and calculate various quantities in biological contexts.
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...
Make an accurate diagram of the solar system and explore the concept of a grand conjunction.
Can you work out which processes are represented by the graphs?
Get some practice using big and small numbers in chemistry.
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?
Formulate and investigate a simple mathematical model for the design of a table mat.
Can you suggest a curve to fit some experimental data? Can you work out where the data might have come from?
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.
When a habitat changes, what happens to the food chain?
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?
Is it really greener to go on the bus, or to buy local?
Use trigonometry to determine whether solar eclipses on earth can be perfect.
Estimate these curious quantities sufficiently accurately that you can rank them in order of size
How would you go about estimating populations of dolphins?
Explore the relationship between resistance and temperature
Analyse these beautiful biological images and attempt to rank them in size order.
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 with numbers big and small to estimate and calulate various quantities in biological contexts.
Work out the numerical values for these physical quantities.
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?
Are these estimates of physical quantities accurate?
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?
The triathlon is a physically gruelling challenge. Can you work out which athlete burnt the most calories?
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.
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 you rank these sets of quantities in order, from smallest to largest? Can you provide convincing evidence for your rankings?
Is there a temperature at which Celsius and Fahrenheit readings are the same?
These Olympic quantities have been jumbled up! Can you put them back together again?
Explore the properties of isometric drawings.
Can you draw the height-time chart as this complicated vessel fills with water?
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?