Our latest Earthlearningidea is 'From an orange to the whole Earth: using an orange to model different densities of the Earth's layers'. Ask your pupils:-
- what will happen if you put a whole orange into a container of water?
- what will happen when you peel the orange and put the orange without its peel into water?
- what will happen when you put the orange peel into the water on its own?
Scientists know that the relative density of the whole Earth is 5.5 but the rocks of the Earth's crust have a much lower average relative density of 3.00. What does this tell you about the density of the layers inside the Earth?
This is a simple activity to carry out; tell us how you get on.