If you need an activity to do with the older kids, (older as in 6+ years), get one of these Sunprints Kits. It was developed by educators at the Lawrence Hall of Science, and encourages the interest of kids in the photographic process using only sun and water. Place a fern, flower, or other object on the special paper and set it in the sun briefly. Then rinse the paper in water and watch as a beautiful long-lasting image appears. Frame it and you’ll have beautiful art for your walls!