Resources by Science & Plants for Schools (SAPS)

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Tackling Tropisms: Gravitropism and Phototropism

This set of demonstrations into the effects of tropisms on seedlings is both simple and extendable. Seeds sown on damp cotton wool in Petri dishes are grown either flat, or stuck vertically to a wall, showing the different effects of gravitropism. After a week, students...

Ten Experiments for Ten Years

This collection has been produced in celebration of ten years of continuing professional development run through the National Science Learning Centre. These practical experiments and demonstrations have been selected by the National Science Learning Centre, and their key partners, as the ten experiments that...

Testing the Viability of Yeast

Several different treatments are used to autolyse yeast cells. The viability of the autolysed yeast is then tested by: plating out on agar; testing for dehydrogenase activity; microscopic examination with methylene blue.

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The Battle for Fortress Plants

The poster ‘The Never-Ending Battle for Fortress Plant’ illustrates ideas about plant defences against pathogens. It depicts the plant as a fortress which is defended against invading pathogens. The poster is accompanied by a presentation, which can be used as a step-by-step walk-through of the ideas in the poster...

The Colours of Flowers

This resource, aimed at primary level, helps to develop an understanding of pollination and how flowers attract insects. Linked to the topics of lifecycles, plants and living things and their habitats, it provides an opportunity to identify and name wild flowers, whilst investigating the frequency of different...

The effect of phosphate on the enzyme phosphatase

Produced by Science & Plants for Schools (SAPS), this investigation looks at end-product inhibition of the enzyme phosphatase. 

The investigation is designed for students following a Scottish Highers course but it is equally useful for other post-16 courses in biology. 

This investigation involves...

The effects of IAA on root growth

Produced by Science & Plants for Schools (SAPS), this activity enables students to investigate the effects of the plant hormone indole acetic acid (IAA) on root growth in mustard seedlings.

Different concentrations of IAA appear to have differing effects on root growth. These effects may vary from one...

The effects of mineral concentrations on plant growth

Produced by Science & Plants for Schools (SAPS), this activity enables students to investigate the effects of different concentrations of nitrates, phosphates and potassium on the growth of radish seedlings.

After sowing, the radish seedlings are kept well watered, in a warm temperature under constant...

The Life Cycle of a Flowering Plant

Aimed at primary level, this resource provides a sequencing activity looking at the lifecycle of Brassica, a fast cycling flowering plant. It is designed to help children demonstrate their understanding of the progression through the lifecycle and reinforce their...

The response of leaf discs to green light

Produced by Science & Plants for Schools (SAPS), this investigation enables students to investigate the response of leaf discs from sun and shade plants to green light

Leaf discs from a sun plant and a shade plant are put in a sodium hydrogen carbonate solution. The rate of photosynthesis is seen by how...

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