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Plants

This issue of Big Picture provides lots of interesting information about flowering plants and their uses. 

The plant hormones animation explores the action of indole-3-acetic acid (IAA) and shows how scientists used experimental evidence to explain the role of auxins in a phototrophic response.

The...

Ecology and Simpsons Diversity Index

These activities allow students to model how environmental scientists compare diversity in different ecosystems by using ordinary playing cards as ‘species’ to generate data to calculate Simpson’s Diversity Index.   This can be completed in a single lesson. Some students find the concept of species diversity quite...

Fat

Fat is a word that carries a lot of weight, conjuring up topics as diverse as obesity, hibernating animals, and what we eat and how we cook it. This issue of the Big Picture looks at the fats and lipids to find out what they do, not just inside us and other organisms but also in the world around us.  Curriculum...

Gravitational waves

This Catalyst article explores gravitational waves which have been observed for the first time, a century after they were first predicted by Albert Einstein.

This article is from Catalyst: Secondary Science Review 2016, Volume 26, Issue 4.

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Catalyst volume 26 issue 4: full magazine

This issue of Catalyst contains the following articles:

Dust to dust?

This Catalyst article looks at soil composition and the reasons behind protecting soil from turning into dust. The UN Year of Soils highlighted the many ways in...

Football in science teaching

What is the perfect curve of a ball’s trajectory, what must the ideal turf be like, and what’s the CO2 balance of the UEFA European Championship? From the measurement of the mass of the air inside the ball, to the influence of energy drinks on the performance of the...

Wood decay fungi

This  Catalyst article looks at the work of scientists who use biochemical and DNA analysis to learn more about how fungi cause dead wood to decay.

This article is from Catalyst: Secondary Science Review 2016, Volume 26, Issue 4.

Catalyst ...

Make a non-Newtonian fluid

This Catalyst article includes a recipe on how to make a non-Newtonian fluid which flows in strange and unexpected ways.

This article is from Catalyst: Secondary Science Review 2016, Volume 26, Issue 4.

Catalyst is a science magazine for...

Researching cuttlefish

This Catalyst article looks at cuttlefish which have a remarkable ability to change their appearance at high speed. But how do they do this?

This article is from Catalyst: Secondary Science Review 2016, Volume 26, Issue 4.

Catalyst is a...

Face facts

This Catalyst article describes how human faces contain a wealth of information about the individual - so how do we go about interpreting faces?

This article is from Catalyst: Secondary Science Review 2016, Volume 26, Issue 4.

Catalyst is...

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