This Catalyst article looks at sperm whales and their ways of communications. Sperm whales can dive deep into the ocean. They use sound waves to communicate in the dark and to detect their prey.

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

This Catalyst article explains the use of stem cells to treat medical problems, and outlines new possibilities for the use of adult stem cells in treatment.

Currently, stem cells used for treatment are embryonic stem cells, since they have the ability to form any cell type in the body. The example of the use...

From the Science and Technology Facilities Council (STFC), this resource describes the new and exciting subject that brings together many different branches of science. Astrobiology is the study of how life formed and developed on the Earth, the conditions that made this possible and whether these conditions can...

This Catalyst article looks at Biochemistry, the study of chemical reactions in living things, exploring how it differs from other biological subjects and how examples can be found in everyday life.

This article is from Catalyst: Secondary Science Review 2011, Volume 22, Issue 2.

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This student sheet invites students to consider lignification in detail. Students take thin sections from successive internodes of the shoot and calculate the lignification index of each section. These can then be compared with sections from other parts of the plants to consider where lignin is deposited in other...

Produced by Science & Plants for Schools (SAPS), this activity enables students to:
•    develop knowledge and understanding of structural defence mechanisms in plants
•    develop problem solving skills
•    demonstrate the processing of information and use of calculations

The...

These evidence-based, question and answer style classroom resources can be used to engage students of all ages...

These classroom resources from the Royal Society, based on the latest evidence available to scientists, can be used to engage students in the climate debate and to explore and understand topics relating to climate change. Further resources and extension tasks linked to these activities from the Royal Society are...

These evidence-based, question and answer style classroom resources can be used to engage students in the climate...

This infographic for post-16 students explains the different methods of speciation by natural selection. It summarises allopatric and sympatric speciation 

This activity is part of Endeavour, an online collection of inquiry-based teaching resources created by experts...

This Catalyst article explores the complex structure of cells, and numerous theories of how they were formed. It describes how the development of electron microscopes has allowed greater detail of cellular strutures and organelles to be understood. The article includes detailed electron micropgraphs, along with...

This worksheet in this resource introduces students to the topics of classification and binomial nomenclature. The idea of hierarchy is illustrated, before explaining Linnaeus’s system of classification and the terms kingdom, phylum, class, order, family, genus and species. There is also a useful introduction to...

A Catalyst article about the naming system used for biological species, devised by Linnaeus. The purpose of biological names is investigated and the article also explains how the naming system works.

This article is from Catalyst: Secondary Science Review 2009, Volume 19, Issue 3.

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This Catalyst article explains why there are many anti-bacterial drugs but few antivirals. There are millions of bacteria everywhere – on skin, in the gut, and on food. Bacteria have been troubling human beings for as long as they have been around, so a lot of effort has been directed into finding ways to fight...