In Year 1, we have been enjoying finding out all about sharks. We read that sharks have lots of different features to help them to swim and not to sink. One reason is that sharks have very oily livers, which helps them to float, so we decided to make our own ‘sharks’ and do an investigation to find out if this theory is true. We filled one ‘shark’ with water and one with oil. We predicted what we thought would happen and then tested it out ourselves, recording our results. We were amazed to see that the ‘oily shark’ did in fact float!!