ABSTRACT
This chapter considers the following key ideas: that children should be taught about the importance of electricity at home and in school and should have opportunities to construct simple electric circuits with batteries, wires, bulbs and buzzers. They also include: that children begin to appreciate that forces can make things speed up, slow down or change direction and understand that darkness is the absence of light and that light comes from a variety of sources and that children have experience of many kinds and sources of sound. Young children will use the terms 'heavy' and 'light' and experience 'weighing' in grams and kilograms. They are trying to find the mass of an object or how much 'stuff' there is in the object. More force is needed to move an object with more mass than to move one of the same sizes that has less mass.
