Third graders at Lloyd Harbor recently began a unit entitled, “Interdependent Relationships in Ecosystems.'' In a recent lesson, students were given a bag with a “mystery object” inside to observe using tools such as hand lenses and rulers in order to record data about their phenomenon’s properties and patterns. Science teacher, Julia Glass, shared, “Students were delighted to learn that they were observing authentic fossils!” In order to be considered a fossil, students learned a specimen must be evidence of a living thing and must be thousands of years old. These students in Ms. Barrese’s class learned that fossils are not just dinosaur bones but also include fossilized eggs, animal tracks, plant imprints, insects preserved in sap, petrified wood, animal hair, feathers and even droppings. Students were truly fascinated to expand their understanding of fossils and what information they can reveal about extinct species.