The theme for this weeks Unplugged Project was shiny.
We carried out a shiny spoon experiment. We looked at our reflection in a shiny spoon. Looking at the part where your food would go, your face looks bigger. This is because it is concave. Looking at the back of the spoon your face looks smaller. This is because it is convex. We can remember which part is concave and which part is convex because the concave part goes inwards - like a cave.
I could have made it more technical but that was about my limit for a Monday morning!