This 5E science lesson explores the observable properties of matter (solid, liquid, and gas). The 5E’s include Engage, Explain, Explore, Extend, and Evaluate. Second grade standards are provided, but the lesson can be used for grades 1-5, with some modifications. This lesson plan prioritizes inquiry, hands-on exploration, discussion, arts integration, and personal reflection. Internet resources and links are provided in each part of the lesson plan. Students will make Oobleck, participate in a