Josie experimented with dripping paint down a sloped piece of paper. She carefully watched as the paint drips made lines down the hill that she had formed. Her teacher observed this and took pictures, recognizing that Josie was acting as a scientist by conducting an experiment and observing the results. The teacher notes that Josie seems intrigued by the physical properties of paint and suggests exploring this further by bringing out different tools and materials for her to experiment with.