This summer we have been learning about evolution.
For one part of this topic, we have looked at how scientists find out about the past by looking at fossils.
We know that fossils are made by dirt covering the body of a dead creature over time. Over thousands of years, pressure builds up over the body and ground water dissolves it, leaving the perfect mould for the fossil to be made. Minerals fill up the mould to make the fossil. Over thousands of years, layers of rock and dirt erode away, leaving the fossil to be found.
To make our own fossils, we didn't have thousands of years to spare, so we used salt dough mixed with coffee grounds and tea to make it look old. Here's our designs and models we made...