This is a super fun hands-on, inquiry based, lesson plan and activity sheets for students to explore solids, liquids, and gases. Included are detailed lesson plans, a directions page, recording sheet, and "In the Body" application based assessment. This activity is designed to be done after students have some knowledge about the properties of solids, liquids, and gases, but can easily be tailored to introduce it! I did this activity as an assessment for a unit on Matter and the kids loved it and applied what they knew in a meaningful way that had them thinking critically. All you need is to buy a few eggs and get some "tools" (toothpicks, magnifying glasses, etc.), then let your students learn through collaboration, discussion, inquiry, and application.