The lesson plan summarizes the key concepts around properties of matter to be covered in a 30 minute science period for first year high school students. The objectives are for students to identify general properties of matter, conduct an experiment, and understand the importance of properties. The lesson involves reviewing definitions of mass, volume, density, and weight. Students will participate in an experiment to determine the volume of irregular solids using water displacement. To evaluate learning, students will take a short multiple choice quiz on the concepts covered in the lesson.