Underside of a simple leaf
Note: The circles represent stomata.
Count and record the number of stomata on the underside of this leaf. Cut out your leaf. In your group discuss what you can do to your leaf to reduce the amount of water vapour it loses through the stomata.
Make models of “leaf adaptations and explain how they work to the class.
In your group, use the rubric below to assess the models made by another group of learners. When the groups have
completed their presentations, give feedback to one another.
Assessors Learners assessed Number of models developed
Criteria The group developed a number of different models The models correctly represented adaptations to reduce water loss Learners used scientific terms correctly in their presentations The learners explained clearly how the models work Their explanations were scientifically correct
1 unsatisfactory, 2 satisfactory, 3 good, 4 excellent