These resources have been reviewed and selected by STEM Learning’s team of education specialists for factual accuracy and relevance to teaching STEM subjects in UK schools.

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 compare the seeds in this dish with those in the control dish and see that the cotyledons have grown upwards and the roots downwards. There is an extension activity to investigate the effect of phototropism.

This resource was produced by Science & Plants for Schools (SAPS).

Show health and safety information

Please be aware that resources have been published on the website in the form that they were originally supplied. This means that procedures reflect general practice and standards applicable at the time resources were produced and cannot be assumed to be acceptable today. Website users are fully responsible for ensuring that any activity, including practical work, which they carry out is in accordance with current regulations related to health and safety and that an appropriate risk assessment has been carried out.

Information on the permitted use of this resource is covered by the Category One Content section in STEM Learning’s Terms and conditions.

Lists that tag this content

Biology, POSTED BY
Plant Patrol, POSTED BY