7th Grade Science Student ebook

Unit 6 THE HUMAN BODY female sex cells that are produced in a fetus while she is in the womb. It is thought the chemicals in smo ...

Build a Lung Model Animals need oxygen to survive. Land animals get oxygen from the air they breathe. The respiratory system con ...

CHAPTER 16 HUMAN BODY SYSTEMS Chapter 16 Assessment Vocabulary Select the correct term to complete the sentences. Section 16.1 ...

CHAPTER 16 HUMAN BODY SYSTEMS Without ____, the body would be unable to regulate body temperature. The _____ is made up of glan ...

UNIT 6 THE HUMAN BODY Chapter 16 Assessment.. Fraternal twins are the result of two eggs being fertilized by separate sperm. Ou ...

CHAPTER 16 HUMAN BODY SYSTEMS Section 16.2 The graph below shows the hormone levels in a woman’s blood during her menstrual cyc ...

Chapter 17 Support and Movement Why are skeletons often used to scare people on Halloween? Many people associate a skeleton with ...

UNIT 6 THE HUMAN BODY axial skeleton - forms the axis of the body and includes the skull, vertebral column, ribs, and sternum. a ...

17.1 BONES AND MUSCLES Chapter 17: Support and Movement Vertebral column Femur Pelvis Patella Fibula Tibia Calcaneus Rib cage St ...

UNIT 6 THE HUMAN BODY Figure 17.1: A cross section of the femur—longest bone in your body. periosteum - the outer surface of a b ...

17.1 Bones and Muscles. CHAPTER 17: SUPPORT AND MOVEMENT Joints Fixed and moving joints The place where two bones meet is called ...

UNIT 6 THE HUMAN BODY Figure 17.3: Some human muscles. muscular system - a body system that consists of skeletal muscles and ten ...

17.1 BONES AND MUSCLES CHAPTER 17: SUPPORT AND MOVEMENT Movement Muscles work in pairs Muscles usually work in pairs called flex ...

UNIT 6 THE HUMAN BODY Figure 17.5: Use this diagram to answer question 1. 17.1 Section Review Match the names of the bones belo ...

17.2 THE HUMAN BODY AS A MACHINE CHAPTER 17: SUPPORT AND MOVEMENT 17.2 The Human Body as a Machine You may have heard the human ...

UNIT 6 THE HUMAN BODY Figure 17.7: Forces in a lever. Figure 17.8: Forces in a set of ropes and pulleys. input force - the force ...

17.2 The Human Body as a Machine. CHAPTER 17: SUPPORT AND MOVEMENT Levers and mechanical advantage Examples of levers A lever ca ...

UNIT 6 THE HUMAN BODY Figure 17.9: A broom has a mechanical advantage of less than 1. The mechanical advantage of a lever can be ...

17.2 THE HUMAN BODY AS A MACHINE CHAPTER 17: SUPPORT AND MOVEMENT The three classes of levers The three types of levers There ar ...

UNIT 6 THE HUMAN BODY Figure 17.11: The neck is an example of a first-class lever. Figure 17.12: The foot is an example of a sec ...