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### Number and algebra

### Geometry and measure

### Probability and statistics

### Working mathematically

### For younger learners

### Advanced mathematics

# Scientific Calculation

### Big and Small Numbers in the Living World

### Bigger or Smaller?

### Time to Evolve

### Perfect Eclipse

### Big and Small Numbers in Physics

### Big and Small Numbers in the Physical World

### Carbon Footprints

### Does This Sound about Right?

### Big and Small Numbers in Biology

### Constantly Changing

### Big and Small Numbers in Chemistry

### Molecular Sequencer

### Construct the Solar System

### Approximately Certain

### Heavy Hydrocarbons

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This collection of STEM resources is based on scientific calculation. Resources are listed in order of stage.

Age 11 to 16

Challenge Level

Work with numbers big and small to estimate and calculate various quantities in biological contexts.

Age 14 to 16

Challenge Level

When you change the units, do the numbers get bigger or smaller?

Age 14 to 16

Challenge Level

How many generations would link an evolutionist to a very distant ancestor?

Age 14 to 16

Challenge Level

Use trigonometry to determine whether solar eclipses on earth can be perfect.

Age 14 to 16

Challenge Level

Work out the numerical values for these physical quantities.

Age 14 to 16

Challenge Level

Work with numbers big and small to estimate and calculate various quantities in physical contexts.

Age 14 to 16

Challenge Level

Is it really greener to go on the bus, or to buy local?

Age 14 to 16

Challenge Level

Examine these estimates. Do they sound about right?

Age 14 to 16

Challenge Level

Work with numbers big and small to estimate and calulate various quantities in biological contexts.

Age 14 to 16

Challenge Level

Many physical constants are only known to a certain accuracy. Explore the numerical error bounds in the mass of water and its constituents.

Age 14 to 16

Challenge Level

Get some practice using big and small numbers in chemistry.

Age 14 to 18

Challenge Level

Investigate the molecular masses in this sequence of molecules and deduce which molecule has been analysed in the mass spectrometer.

Age 14 to 18

Challenge Level

Make an accurate diagram of the solar system and explore the concept of a grand conjunction.

Age 14 to 18

Challenge Level

Estimate these curious quantities sufficiently accurately that you can rank them in order of size

Age 14 to 18

Challenge Level

Explore the distribution of molecular masses for various hydrocarbons