Transpiration (plant transport systems) 3 lesson Bundle

3 Lessons looking at transpiration all on 1 PPT with 2 easy practical opportunities. Instructions in the notes section of each slide - Each lesson builds on exam technique with higher ability students, but can be differentiated if necessary. Equipment needed - Food Dyes - Celery - Beakers - Straws - Cups - Drinking water.

1 - Plant Transport Systems - Lesson looking at the adaptations of the xylem and phloem, discussing the ideas of transpiration and translocation. Practical task involving celery and food colouring to calculate transpiration rate. Starter and plenary looks at improving question on rainbow flowers as a hook.

2 - Transpiration - Starter recapping previous lesson, before introducing ideas of stomata and guard cells in leaves, linking to osmosis. Transpiration introduced through the straw model (4 different straws needed - big, small, normal, 5 taped together) and evaluated throughout. Students use their knowledge and key ideas from the slides to develop their own exam question. Plenary applying knowledge.

3 - Factors affecting transpiration - Last lesson looking at the factors affecting transpiration. Students define the 4 key term factors as a starter before looking at 4 problems through the use of personalised problems for a farmer (I used a fellow staff member and students throughout the slides to engage students. Data task at the end again to build on exam structure.

Any feedback is always welcome :)