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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 The Excretory System Lesson Overview: 1) What do we already know? (The Skin) 2) Vocabulary 3) Drawings 4) Main Ideas 5) Review Human Body Systems: Lesson 5 The Excretory System: What do we already know? Page 1 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 2 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 3 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 4 The Excretory System: Drawings (pg. 157) Human Body Systems: Lesson 5 Page 5 The Excretory System: Drawings (pg. 158) Human Body Systems: Lesson 5 Page 6 The Excretory System: Drawings (pg. 161) Human Body Systems: Lesson 5 Page 7 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 8 The Excretory System: Main Ideas 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. Human Body Systems: Lesson 5 Page 9 The Excretory System: Main Ideas 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. Human Body Systems: Lesson 5 Page 10 The Excretory System: Review 1) Summarize the main ideas 1) Click to Watch! 2) Think, Talk, and Write Human Body Systems: Lesson 5