In Science this week, Year 3 carried out an exciting investigation to find out which material would be the best for helping a school bag stay visible during the darker months. The children tested bubble wrap, tinfoil, a CD, cardboard and a jumper to see which reflected the most light. To keep it a fair test, we used a ruler to measure the exact distance between the torch and each material, making sure the light source stayed the same each time we changed the item.

After observing and recording our results, we discovered that the CD was the most reflective. This is because a CD has a very smooth, shiny surface, which allows light to bounce off clearly. This strong reflection is much brighter than the light scattered by rougher materials like cardboard or fabric.

The children loved exploring light, reflection and safety—great scientific thinking all round!