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Video Source: www.youtube.com/watch?v=fI3x68CkKW0
Photosynthesis can be a hard topic to demonstrate in the classroom, especially in winter. Join superstar science teacher, Alom Shaha, as he talks us through a range of experiments and protocals for investigating photosynthesis and respiration using algal balls. • This fun and reliable practical makes investigating photosynthesis easy, with a technique that can be used with students from KS3 through to GCSE and post-16 / A-Level biology, and offering quantifiable and replicable results. • 0:00 What are algal balls? • 0:55 Experiment 1 - Does photosynthesis require light? • 2:20 Experiment 2 - Making the algal balls • 4:08 Experiment 3 - How does photosynthesis change with light intensity? • 5:22 Experiment 4 - How does the wavelength of light affect photosynthesis? • 6:05 Experiment 5 - Calculating the compensation point • 7:10 Conclusions / credits • Download the full teaching and technical notes and student worksheets at http://www.saps.org.uk/algalballs • You can purchase 30ml of algae (Scenedesmus quadricauda) from our recommended supplier Darwin Biological at https://www.darwinbiological.co.uk/co...
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