1. Life Science Unit Overview: Chapter 1 – Structure of Living Things Lesson 1 – Cells Lesson 2 – From Cells to Organisms Lesson 3 – Diversity of Organisms Chapter 2 – Plant Structures and Functions Lesson 1 – Vascular Plants Lesson 2 – Plant Transport Systems Lesson 3 – Photosynthesis and Respiration Chapter 3 – Human Body Systems Lesson 1 – The Human Body Lesson 2 – The Digestive System Lesson 3 The Respiratory System Lesson 4 – The Circulatory System Lesson 5 – The Excretory System

2. The Excretory System Lesson Overview: 1) What do we already know? (The Skin)The Skin 2) Vocabulary 3) Drawings 4) Main Ideas 5) Review Human Body Systems: Lesson 5

3. The Excretory System: What do we already know? BrainPOP Teaser BrainPOP Teaser 1)Why does your body need a circulation system? a) 2)What are the parts of the heart? a) 3) How do blood and blood vessels work? a) Human Body Systems: Lesson 5 Page 1

4. The Excretory System: Vocabulary Part I 1) urinary system: includes your kidneys, bladder, urethra, and ureters. 2) kidneys: bean shaped organ that filters waste out of the blood and produce urine. 3) urine: a combination of waste and excess water. Human Body Systems: Lesson 5 Page 2

5. The Excretory System: Vocabulary Part II 4) nephron: separates waste from useful materials in your blood. 5) Ureters: are the tubes that transports urine from your kidney to your bladder. 6) bladder: temporarily stores urine until it can be released. 7) urethra: is the tube that transports urine from your bladder to the outside world. Human Body Systems: Lesson 5 Page 3

6. The Excretory System: Drawings (pg. 157) Human Body Systems: Lesson 5 Page 4

7. The Excretory System: Drawings (pg. 158) Human Body Systems: Lesson 5 Page 5

8. The Excretory System: Drawings (pg. 161) Human Body Systems: Lesson 5 Page 6

9. The Excretory System: Main Ideas 1)What does the excretory system do? (pg. 156-157)  a) It removes liquid waste from your body Quick Check (pg. 157) -Critical Thinking: What makes something a waste?  a) Waste is material that is not useful or harmful to your body. Human Body Systems: Lesson 5 Page 7

10. 2) How does your body filter blood? (pg. 158-159)  a) Your liver breaks down toxins in the blood. Your lungs release carbon dioxide. Quick Check (pg. 159) -Critical Thinking: Why are nephrons surrounded by capillaries?  a) Capillaries allow waste cells to pass through them in order to clean the blood. The Excretory System: Main Ideas Human Body Systems: Lesson 5 Page 8

11. 3) How does your body eliminate waste? (pg. 160-161)  a)Through our excretory system through our kidneys, ureters, bladder and urethra. b)Through your sweat glands. c)Through the digestive system. d)Through exhaling carbon dioxide. The Excretory System: Main Ideas Human Body Systems: Lesson 5 Page 9

12. The Excretory System: Review 1)Summarize the main ideas 1)Click to Watch!Click to Watch! 2)Think, Talk, and Write Human Body Systems: Lesson 5 Page 10