An animated sequence that illustrates a range of different light sources. The Sun, fire, electric lights and torches are all shown. Darkness is presented as the absence of light and shadows as examples of where an opaque object blocks light. Light is also shown as capable of travelling through air, water and transparent objects. The clip presents some examples of reflective objects, which cause light to ‘bounce off’ them. The commentary introduces some key vocabulary: ‘transparent’, ‘opaque’ and ‘reflective’.
After viewing, you could challenge pupils to co-operate to reflect light from a source onto a target point in the classroom, using small mirrors or other reflective materials. Other pupils could then find ways of blocking the light’s route. The children could go on to build a ‘light maze’, using construction bricks and small mirrors. Can they successfully navigate a torch beam through their maze?