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#### Resources tagged with STEM - living world similar to Approximately Certain:

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Broad Topics > Applications > STEM - living world

### Approximately Certain

##### Stage: 4 and 5 Challenge Level:

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

### Bigger or Smaller?

##### Stage: 4 Challenge Level:

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

##### Stage: 4 Challenge Level:

Which units would you choose best to fit these situations?

### A Question of Scale

##### Stage: 4 Challenge Level:

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?

### Does This Sound about Right?

##### Stage: 3 Challenge Level:

Examine these estimates. Do they sound about right?

### Food Chains

##### Stage: 3 Challenge Level:

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

### Big and Small Numbers in the Living World

##### Stage: 3 and 4 Challenge Level:

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

### Investigating the Dilution Series

##### Stage: 4 Challenge Level:

Which dilutions can you make using only 10ml pipettes?

### Time to Evolve

##### Stage: 4 Challenge Level:

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

### More or Less?

##### Stage: 4 Challenge Level:

Are these estimates of physical quantities accurate?

### Bionrich

##### Stage: 4 and 5 Challenge Level:

bioNRICH is the area of the stemNRICH site devoted to the mathematics underlying the study of the biological sciences, designed to help develop the mathematics required to get the most from your. . . .

### The Genes of Gilgamesh

##### Stage: 4 Challenge Level:

Can you work out the parentage of the ancient hero Gilgamesh?

### How Do You React?

##### Stage: 4 Challenge Level:

To investigate the relationship between the distance the ruler drops and the time taken, we need to do some mathematical modelling...

### Food Web

##### Stage: 3 Challenge Level:

Is this eco-system sustainable?

### Bird Watch

##### Stage: 2 and 3 Challenge Level:

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

### Counting Dolphins

##### Stage: 4 Challenge Level:

How would you go about estimating populations of dolphins?

### Big and Small Numbers in Biology

##### Stage: 4 Challenge Level:

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

### Investigating Epidemics

##### Stage: 3 and 4 Challenge Level:

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

### Natural Shapes

##### Stage: 4 Challenge Level:

How does shape relate to function in the natural world?

### Reaction Timer

##### Stage: 3 Challenge Level:

This problem offers you two ways to test reactions - use them to investigate your ideas about speeds of reaction.

### Biology Measurement Challenge

##### Stage: 4 Challenge Level:

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

### Weekly Challenge 48: Quorum-sensing

##### Stage: 4 Short Challenge Level:

This problem explores the biology behind Rudolph's glowing red nose.

### Robot Camera

##### Stage: 4 Challenge Level:

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

### Genetics

##### Stage: 4 Challenge Level:

A problem about genetics and the transmission of disease.

### Terrariums

##### Stage: 3 Challenge Level:

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

### Speed-time Problems at the Olympics

##### Stage: 4 Challenge Level:

Have you ever wondered what it would be like to race against Usain Bolt?

### Using the Haemocytometer

##### Stage: 4 Challenge Level:

Practise your skills of proportional reasoning with this interactive haemocytometer.

### Alternative Record Book

##### Stage: 4 and 5 Challenge Level:

In which Olympic event does a human travel fastest? Decide which events to include in your Alternative Record Book.

### Maths Is Everywhere!

##### Stage: 3 and 4 Challenge Level:

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

### Scientific Measurement

##### Stage: 4 Challenge Level:

Practice your skills of measurement and estimation using this interactive measurement tool based around fascinating images from biology.

### Like Father Like Son

##### Stage: 4 Short Challenge Level:

What is the chance I will have a son who looks like me?

### Bio Graphs

##### Stage: 4 Challenge Level:

What biological growth processes can you fit to these graphs?

### Flower Power

##### Stage: 3 and 4 Challenge Level:

Create a symmetrical fabric design based on a flower motif - and realise it in Logo.