- Objective of the lesson:
- to understand the negative impact and consequences of acid rain on our ecosystem
- to differentiate in impact between different types of plants
- course of the lesson:
- students are introduced to the subject by way of a movie/documentary on the subject
- students are requested to give their opinion on the matter (short discussion between students)
- students are divided into groups who will, each conduct 1 experiment; half of the groups will conduct the experiment on an vascular plant, the other half on a non-vascular plant
- the safety procedures are discussed with the class
- the students perpare and execute the experiment
- students from the same type of experiment discuss their results
- students from different type of experiment compare their results and discussion possible reasons for differences in results