KS3 Photosynthesis PPT and poster task

This PowerPoint introduces photosynthesis at a KS3 level as part of a unit on plant biology.

The lesson comes with a starter, video question task, suggestions for teacher-led plenary and an independent research task for students.

The main part of the lesson is an independent poster/leaflet creation task on deforestation which can be used to recap ecosystems if students have covered this unit previously.

The material covers the following specification points from the UK KS3 science curriculum:

• the reactants in, and products of, photosynthesis, and a word summary for photosynthesis
• the dependence of almost all life on Earth on the ability of photosynthetic organisms, such as plants and algae, to use sunlight in photosynthesis to build organic molecules that are an essential energy store and to maintain levels of oxygen and carbon dioxide in the atmosphere
• plants making carbohydrates in their leaves by photosynthesis and gaining mineral nutrients and water from the soil via their roots
• the interdependence of organisms in an ecosystem, including food webs and insect pollinated crops