Light

This title supports the following learning objectives for Key Stage 2 science: Recognise that light is needed in order to see things and that dark is the absence of light; Notice that light is reflected from surfaces; Recognise that light appears to travel in straight lines; Explain that objects are seen because they give out or reflect light into our eyes; Recognise that shadows are formed when light is blocked by an opaque object; Explain why shadows have the same shape as the objects that cast them and find patterns in the way that the size of shadows change.