Student Project . . Explore Rocks Using Core Sampling Jet Propulsion Laboratory https://www.jpl.nasa.gov/ Last Updated: Sept. 27, 2024 Subject Science Time Required 30 - 60 mins Grade Levels 3-8 Have you ever wondered how scientists learn what a rock is made of, how it was formed, and when it was formed? In this activity, you’ll make your own “rock” and then use simple tools to explore inside! Materials 3 or more colors of play dough OR soft clay – Download Recipe Drinking straw OR plastic cylin