Part of the IB science curriculum is a 10 hr project in which students engage with a topic using teamwork and collaboration of a range of skills from chemistry, biology, DT and physics. This year a group of students from Whitaker and Powys houses went to the Brecon Beacons National Park and investigated the Science of Cave Systems. They looked at underground formations, calculated the ages of geological features, identified life forms in the caves, tested minerals on the Mohs hardness scale, as well as taking water samples and testing for calcium and nitrate ions, and doing dissolved oxygen Winkler testing. It was a very successful and enjoyable day, and the start of a regular series of field trips to enhance science teaching. Many thanks to Tom Partridge and the staff of Atlantic Outdoors for facilitating the day.