This innovative activity uses the context of the distribution of dwarf willow to carry out virtual quadrat and transect sampling techniques.

Initially pupils are asked to discuss the unique characteristics of trees and then debate whether dwarf willow is a tree.

To carry out the field work, pupils can...

This protocol allows students to investigate the effects of the hormone auxin (Indole Acetic Acid or IAA) as a plant growth regulator. The investigations give opportunities to look at auxiliary bud development, root development, and leaf abscission in Coleus. The method is suitable for independent investigations by...

These reliable practicals from SAPs allow students to practice a range of skills, such as microscopy skills, serial dilutions, plotting and using standard curves and developing mathematical skills.  These investigations were designed for students following a Scottish Highers course but they are equally useful for...

This brief resource provides five ideas for investigating the effects of eutrophication on aquatic plant life. Each activity is based on setting up a range of solutions with increasing amounts of minerals and following the growth of aquatic plants. The resource offers suggestions of how the mineral content could be...

This resource, from the Association for the Study of Animal Behaviour (ASAB), allows students to investigate the behaviour of ants, and includes:

• Background information about British ants.
• A step-by-step approach to the collection and maintenance of some British ants with particular reference to...

The SAPS ELISA kit for Botrytis has been developed as a low cost kit to bring practical immunology into the classroom. The monoclonal antibody in the kit detects Botrytis, a fungal pathogen. Botrytis infects plant material (such as strawberries, raspberries, tomatoes and flowers) and is of considerable importance...

A Catalyst article about the astronomer William Herschel who discovered Uranus in 1781. He became the first person since ancient times to identify a new planet. However, he is also known as the ‘accidental’ discoverer of infrared radiation. The article asks is this a fair description and can such discoveries really...

This article from Catalyst looks at ionic liquids which are a developing area in chemistry. Ionic liquids are liquids which have the potential to provide greener ways of carrying out chemical processes.

The article is from Catalyst: Secondary Science Review 2014, Volume 25, Issue 2.

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A Catalyst article about iron, a relatively abundant element that humans have made widespread use of since the Iron Age (about 750 BC). The article explores the extraction of iron ore, the chemistry of iron and the blast furnace process.

This article is from Catalyst: GCSE Science Review 2006, Volume 16,...

This Catalyst article looks into Alzheimer’s disease which affects around 465 000 people in the UK, with the number of sufferers is growing as the population ages. It is a form of dementia that causes cell death in the brain and leads to memory loss and mood swings. The article investigates whether the presence of...

A Catalyst article explaining how new data suggests that it is very unlikely that life ever existed on Mars. When the presence of water was confirmed a few years ago, there was a lot of speculation that at least simple life forms had once lived there as water is essential for every known living organism. The latest...

A Catalyst article examining if there are harmful chemicals in farmed fish. Oily fish such as salmon, tuna, sardines and mackerel contain plenty of protein, vitamins and the right sort of fats. They are rich in omega-3 fatty acids which are released when fats are digested. The human body uses these fatty acids to...

A Catalyst article about the Kepler spacecraft, which is used to look for extra-solar planets. Scientists are hoping to shine light on the age old question of life’s existence elsewhere in the Universe using a new space-based telescope named Kepler. Launched on 6 March 2009, Kepler is searching the sky for small,...