Last week, Year 3 carried out an activity which required them to investigate how shadows are formed (when an opaque object blocks the path of light – which travels in straight lines); and why/how shadows change size.

To do so, the children used a light source (torch) to cast an object’s shadow onto a piece of paper then drew around its outline. Each time, repositioning the object 5cm closer to the light source.

From the investigation, the children discovered that a shadow (formed by an opaque object) will increase in size the closer you position it to a light source; and will decrease in size the further away from a light source that it is positioned.

Take a look for yourself…