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Resources tagged with STEM - living world similar to Reaction Timer:

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Broad Topics > Applications > STEM - living 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.

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?

Bigger or Smaller?

Stage: 4 Challenge Level:

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

Approximately Certain

Stage: 4 and 5 Challenge Level:

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

Stage: 4 Challenge Level:

Which units would you choose best to fit these situations?

Investigating the Dilution Series

Stage: 4 Challenge Level:

Which dilutions can you make using only 10ml pipettes?

Terrariums

Stage: 3 Challenge Level:

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

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?

Bird Watch

Stage: 2 and 3 Challenge Level:

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

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...

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.

Natural Shapes

Stage: 4 Challenge Level:

How does shape relate to function in the natural world?

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.

Counting Dolphins

Stage: 4 Challenge Level:

How would you go about estimating populations of dolphins?

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?

Food Web

Stage: 3 Challenge Level:

Is this eco-system sustainable?

Investigating Epidemics

Stage: 3 and 4 Challenge Level:

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

Speed-time Problems at the Olympics

Stage: 4 Challenge Level:

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

Biology Measurement Challenge

Stage: 4 Challenge Level:

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

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?

Robot Camera

Stage: 4 Challenge Level:

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

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?

Genetics

Stage: 4 Challenge Level:

A problem about genetics and the transmission of disease.

Weekly Challenge 48: Quorum-sensing

Stage: 4 Short Challenge Level:

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

Using the Haemocytometer

Stage: 4 Challenge Level:

Practise your skills of proportional reasoning with this interactive haemocytometer.

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.