This lesson was designed based on current specifications from AQA GCSE chemistry.
It is very effective to ask pupils to count the stairs on one side of the school before the lesson, and collect their varied results.
These resources were used to guide year 9 pupils through this Key Stage 4 Required Practical.
The experiment does not always work properly (in regards to approximating the intensity of the bubbles produced). Therefore, a sensible results table has been prepared, to share with the students.
Activities for the students were;
-design sensible experiment method
-revise different types of variables
identify the inverse relationship between Light intensity and distance of lamp from the plant.
correct the crossed-out data in table
calculate averages of number of bubbles, use correct units.
Make graph with correct X axis (light intensity or distance) and Y Axis (dependent, bubbles)
analyse graph, is there correlation?
explain graph, what is happening to cause bubbles?
This could be the first 4-5 lessons of a unit of work for either key stage 3 or key stage 4.
It uses the analogy of cars to help pupils engage with concept of periodic table (basic trends (KS3) for and then electronic structure (KS4).