# Living World

This collection of STEM resources is based on the living world.  Resources are listed in order of stage.

### Bird Watch

##### Age 7 to 14Challenge Level

Do you know which birds are regular visitors where you live?

### Food Chains

##### Age 11 to 14Challenge Level

When a habitat changes, what happens to the food chain?

### Terrariums

##### Age 11 to 14Challenge Level

Build a mini eco-system, and collect and interpret data on how well the plants grow under different conditions.

### Food Web

##### Age 11 to 14Challenge Level

Is this eco-system sustainable?

### Big and Small Numbers in the Living World

##### Age 11 to 16Challenge Level

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

### Investigating Epidemics

##### Age 11 to 16Challenge Level

Simple models which help us to investigate how epidemics grow and die out.

### Maths Is Everywhere!

##### Age 11 to 16Challenge Level

Maths is everywhere in the world! Take a look at these images. What mathematics can you see?

### Capture and Recapture

##### Age 11 to 16Challenge Level

How do scientists or mathematicians estimate the size of a population of wild animals?

### Peas in a Pod

##### Age 14 to 16Challenge Level

What is the chance this pea plant will look like its parents?

### Counting Dolphins

##### Age 14 to 16Challenge Level

How would you go about estimating populations of dolphins?

### Counting Fish

##### Age 14 to 16Challenge Level

I need a figure for the fish population in a lake. How does it help to catch and mark 40 fish?

### Big and Small Numbers in Biology

##### Age 14 to 16Challenge Level

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

### Biology Measurement Challenge

##### Age 14 to 16Challenge Level

Analyse these beautiful biological images and attempt to rank them in size order.

### Bio Graphs

##### Age 14 to 16Challenge Level

What biological growth processes can you fit to these graphs?

### Genetics

##### Age 14 to 16Challenge Level

A problem about genetics and the transmission of disease.

### Time to Evolve

##### Age 14 to 16Challenge Level

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

### Robot Camera

##### Age 14 to 16Challenge Level

Could nanotechnology be used to see if an artery is blocked? Or is this just science fiction?

### Natural Shapes

##### Age 14 to 16Challenge Level

How does shape relate to function in the natural world?

### Solving the Genome Puzzle

##### Age 14 to 18

The human genome is represented by a string of around 3 billion letters. To deal with such large numbers, genome sequencing relies on clever algorithms. This article investigates.

### Influenza Virus: It's All in the Packaging

##### Age 14 to 18

This article explores how researchers in disease dynamics are using mathematics to understand how the influenza virus replicates.