The year 3.1 students were learning about scientists and what they do.  They learned about the Scientific process and took part in an investigation.  We posed a question and designed an experiment to find out the answer.  The question posed was: How can we tell if an egg we need to cook is fresh or not?  The students predicted the outcome of the experiment and then, we tested our hypotheses. We got a container and filled it with water.  We placed two eggs in the container and checked whether they floated or sank.  If the egg floated, it was past its prime but if the egg sank, it was still fresh!  Our eggs sank 🙂