Essential Question: How do major organ systems work together in living organisms? GSES7L2b: Develop and use a conceptual model of how cells are organized into tissues, tissues into organs, organs into systems, and systems into organisms. GSES7L2c: Construct an argument that systems of the body interasct with one another to carry out life processes. Instructional Approach(s): Teacher reviews the essential question and the standards that align to the essential question

The role of the Excretory System is to remove wastes from the body. Instructional Approach(s): The teacher should present the information on the slide while the students record the role of the Excretory System on their graphic organizer sheet.

Organs that Excrete Waste What it Excretes Lungs Carbon Dioxide Kidney/Bladder Urine Large Intestine Feces (food waste) Skin Excess water/Salt Instructional Approach(s): The teacher should present the information in the slide while the students record the information on their own chart on the graphic organizer sheet

Skin Our Body sweats to maintain temperature You may have noticed you sweat more in places like your feet, your hands or your forehead This is because you have more sweat glands in those areas Instructional Approach(s): The teacher should present the information on the slide

Write it Down On a scratch sheet of paper write a brief statement explaining how this trash truck is similar to the organs in your excretory system and how it is different. Instructional Approach(s): The teacher may want to use the “write it down” as a formative assessment to determine student mastery of the Excretory System