Science in Action: Year 6 Testing Elasticity

This week in Science, Year 6 pupils carried out an exciting investigation to explore the concept of elasticity and to identify the elastic limit of an elastic band. The aim of the experiment was to observe how an elastic band stretches when increasing weight is applied and to determine the point at which it no longer returns to its original length.

The children carefully measured the original length of an elastic band before gradually adding masses of 100 grams at a time. After each mass was added, they measured the new length of the band and calculated the extension by finding the difference between the original length and the stretched length. This allowed them to collect accurate data for each stage of the experiment.

Once all of their measurements had been recorded, the pupils used their results to create line graphs. These graphs helped them clearly see the relationship between the mass added and the extension of the elastic band. By analysing the shape of the graph, they were able to identify the point where the pattern stopped being proportional. This point showed when the elastic band had reached its elastic limit, meaning it would no longer return fully to its original shape.

Throughout the investigation, pupils focused on the important scientific skills of precision and accuracy when taking measurements and recording results. They also discussed the importance of safety when working with weights and equipment to ensure the experiment was carried out carefully and responsibly.

This practical lesson helped the children develop their understanding of forces and materials while also strengthening their skills in measuring, recording data, and interpreting graphs like real scientists.