Human Body Systems
Age 12-14: Concept 2 - Semester 2: Unit 4

In this unit, you will explore the human body. Each lesson will cover one of the nine systems in the human body and their main organs. This includes the muscular, cardiovascular, respiratory, digestive, urinary, reproductive, immune, and nervous systems. You will also learn about how the human body grows and maintains development. For your final project, you will create a presentation through PowerPoint of poster board demonstrating your knowledge of the human body.

Other Items You May Need

The Age 12-14 semester 2 science units require materials from the Semester 2 Science Kit.
$58.50 #1808 Age 12-14 - Semester 2 Science Kit


  • Able to read and comprehend novels at an 8th or 9th grade reading level
  • Able to write multiple paragraphs on a topic
  • Can write a five-paragraph essay
  • Usually used by children in the eighth grade

Table of Contents

  • Lesson 1: Our Bodies
  • Lesson 2: Cells, Tissues, and Organs
  • Lesson 3: Musculoskeletal System
  • Lesson 4: Cardiovascular System
  • Lesson 5: Respiratory System
  • Lesson 6: Digestive System
  • Lesson 7: Urinary System
  • Lesson 8: Endocrine System
  • Lesson 9: Reproductive System
  • Lesson 10: Immune System
  • Lesson 11: Nervous System (2 Days)
  • Lesson 12: Balance in the Body
  • Lesson 13: Human Growth and Development
  • Final Project: Body Systems Presentation (3 Days)

Summary of Skills

Moving Beyond the Page is based on state and national standards. These standards are covered in this unit.
  • Analyze how an imbalance in homeostasis may result from a disruption in any human system. (Science)
  • Analyze how human body systems interact to provide for the needs of the human organism. (Science)
  • Compare joints in the body (wrist, shoulder, thigh) with structures used in machines and simple devices (hinge, ball-and-socket, and sliding joints). (Science)
  • Describe how systems within the human body are defined by the functions they perform. (Science)
  • Describe the function of the umbilicus and placenta during pregnancy. (Science)
  • Describe the growth and development of the human organism. (Science)
  • Evaluate how systems in the human body help regulate the internal environment. (Science)
  • Explain how levers confer mechanical advantage and how the application of this principle applies to the musculoskeletal system. (Science)
  • Explain how the structure of an organ is adapted to perform specific functions within one or more systems. (Science)
  • Explain how understanding human body systems can help people make informed decisions regarding health. (Science)
  • Explain that organ systems function because of the contributions of individual organs, tissues, and cells, and failure of any part can affect the entire system. (Science)
  • Explain the effects of environmental influences on human embryo development and human health including smoking, alcohol, drugs, and diet. (Science)
  • Recognize how bones and muscles work together to provide a structural framework for movement. (Science)
  • Recognize how reproductive organs of the human female and male generate eggs and that sperm and how sexual activity may lead to fertilization and pregnancy. (Science)
  • Recognize that contractions of the heart generate blood pressure and that heart valves prevent backflow of blood in the circulatory system. (Science)
  • Recognize that plants and animals have levels of organization for structure and function, including cells, tissues, organs, organ systems, and the whole organism. (Science)
← go back