Algal balls – Photosynthesis using algae wrapped in jelly balls
Photosynthesis can be a hard topic to demonstrate reliably in the lab, especially in winter. This fun and reliable practical makes investigating photosynthesis easy, with a technique that can be used with students from KS3 to post-16, and offering quantifiable and replicable results.
Measuring the rate of photosynthesis
A video from 'Science &Plants for Schools' showing the classic experiment involving pond weed and photosynthesis
Transpiration – the power of the potometer
In this video the use of two different potometers is demonstrated