We enjoyed learning:

• How can we represent electrical components in diagrams?
• How can we change the brightness of a lamp?
• What are the effects of varying the component in a circuit? 

We learnt that in order to make our bulbs brighter we could use shorter, thicker wires made of copper and that we can add more voltage to our circuits without overloading it. 

In order to make our bulbs dimmer, we could use less power or  have longer, thinner wires made of gold.