One of a series of resources from Science & Plants for Schools (SAPS) investigating key topics in plant biology.

This activity allows students to investigate many factors that influence seed germination, including temperature, light, nutrient levels, pollutant effects, tropisms and so on.

It...

In this activity, from the LSIS, students discover for themselves the importance of the perpendicular distance in moments. It is presented as a whole class discussion but can easily be adapted for small group work.

The activity uses a magnetic disc that takes about 15 minutes to construct. The activity will...

Vernalisation offers an interesting example of the way that plants have evolved to exploit the predictability of seasonal change and, in this case, to ensure that flowering occurs at an appropriate time. It also gives an example of how environmental factors control and...

One of a series of resources from Science & Plants for Schools (SAPS) investigating key topics in plant biology. In this practical, student investigate how lead inhibits catechol oxidase, an enzyme which is easily extracted from a banana and which is responsible for turning fruit brown. Measuring the intensity...

One of a series of resources from Science & Plants for Schools (SAPS) investigating key topics in plant biology. A simple yet accurate protocol looking at the results of the enzyme catalase. Catalase is a widespread enzyme, protecting the cell from toxic effects of hydrogen peroxide by catalysing its...

One of a series of resources from Science & Plants for Schools (SAPS) investigating key topics in plant biology. A standard protocol which is used to extract phosphatase enzymes from plants, including a method to calculate the rate of reaction. Phosphatases are enzymes widespread in plants easily extracted from...

Understanding the osmotic potential of plant cells is a key part of understanding...

From Science & Plants for Schools (SAPS), this practical activity was developed for Scottish Highers specifications, but the protocol can equally well be used for other specifications. 

Students look at potato cyst nematodes, a serious pest of food crops. This is a good example of parasitism to study as...

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...

All life forms on Earth are based on organic biochemistry. This activity requires students to analyse an unknown soil sample (just recovered from a space mission to another planet!) and look for signs of possible indicators for life. Curriculum areas covered: • Cell biology • Food tests, including starch, sugar,...

This Unilever Laboratory Experiment, published in 1966, describes the use of steam distillation to separate oil from crushed cloves. The method for extracting the eugenol from the oil used carbon tetrachloride (tetrachloromethane) and so would need to be modified before this could now be done in schools and...