Year 3 worked scientifically to explore which materials are good reflectors of light, using a variety of materials. Through their investigation, the scientist discovered that several materials are excellent reflectors. They learned that mirrors are highly reflective due to their smooth surface, which bounces light back in a predictable way. Metals like aluminum, copper, and silver were also identified as being highly reflective. They also looked at specialised materials like glass beads used in road markings and retroreflective materials found in safety gear, noting that these are designed to reflect light directly back to its source. They also discussed how some materials, like fluorescent materials and certain synthetic fabrics, are used to enhance visibility and safety, even if they reflect light differently. Overall, the children concluded that reflective materials have many benefits, from improving safety to creating interesting visual effects.
