In this resource, pupils will spend a day recording approximately how much water they use for different activities. This is followed by an experimental activity in the classroom, where they will use pre-prepared “lunar ice cores” and filter these to get water. They will use the results of the first and second activity to calculate how much lunar ice they would need to dig or drill to give them enough water for one day. The resource suggests discussions of water use and recycling, both on Earth and in space.