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).