CHAPTER 10 B , MUSCLES AND SKIN - 10, Bones, Muscles, and Skin ... Warming up muscles before exercise makes muscles more flexible. c. Muscles never

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Science Explorer Grade 7 Guided Reading and Study Workbook 113Prentice-Hall, Inc.Name ____________________________________ Date __________ Class ___________________C H A P T E R 1 0BONES, MUSCLES, AND SKINOrganization and Homeostasis(pages 336-343)This section tells how an animals body is organized and describes the four types oftissue in animals. It also describes how the body maintains stable internal conditions.Levels of Organization (pages 336337)1. Is the following sentence true or false? Each part of an organism has aspecific job to do, and all of the different parts work independently ofeach other.2. List the levels of organization in organisms, starting with the smallest.a. b.c. d.Cells: Structure and Function (page 337)3. The basic unit of structure and function in a living thing is a(n) .4. Circle the letter of the outside boundary of an animal cell.a. cytoplasm b. nucleus c. tissue d. cell membrane5. The control center that directs the cells activities and containsinformation that determines the cells characteristics is the .6. What is the cytoplasm?SECTION101114 Guided Reading and Study Workbook Science Explorer Grade 7Prentice-Hall, Inc.Name ____________________________________ Date __________ Class ___________________7. Is the following sentence true or false? Cells carry on the processes that keep organisms alive.Tissues (pages 338339)8. What is a tissue?9. Complete the table to show the functions and examples of the tissues inthe human body. See Figure 2 on page 338.CHAPTER 10, Bones, Muscles, and Skin (continued)Tissues in the Human BodyTissue Function ExampleMuscleNerveConnectiveEpithelialOrgans and Organ Systems (page 339)10. A structure that is made up of different kinds of tissues is a(n) .11. Circle the letter of the organ.a. muscle cell b. blood c. lungs d. digestive system12. What is an organ system?13. Organs in the circulatory system include the and .Science Explorer Grade 7 Guided Reading and Study Workbook 115Prentice-Hall, Inc.Name ____________________________________ Date __________ Class ___________________Match the organ system with its function. See Figure 3 on page 475.Organ Systems14. endocrine15. circulatory16. excretory17. respiratory18. digestive19. immuneMaintaining Stable Internal Conditions (pages 340341)20. Is the following sentence true or false? The different body systems worktogether and depend on one another.21. The process by which an organisms internal environment is kept stable in spite of changes in the external environment is called .22. How do an animals kidneys regulate water balance?23. How do pores in the leaves of plants help control water balance?24. How does perspiration help maintain constant body temperature?25. An organisms is the action or change in behaviorthat occurs as a result of a stimulus.26. Hunger is a(n) stimulus.Functionsa. Takes oxygen into the bodyb. Fights diseasec. Removes wastesd. Controls body process with chemicalse. Takes food into the body and breaks itdownf. Carries materials to and from body cells116 Guided Reading and Study Workbook Science Explorer Grade 7Prentice-Hall, Inc.Name ____________________________________ Date __________ Class ___________________Stress and Homeostasis (pages 342343)27. What is stress?28. An event, such as an argument or an upcoming oral report, that causes stress is a(n) .29. Is the following sentence true or false? Stress does not affect homeostasis.30. What is adrenaline?31. Complete the flowchart to show the effects of adrenaline on the body.CHAPTER 10, Bones, Muscles, and Skin (continued)Breathing , sending more oxygen to bodycells to provide energy for the muscles.Extra oxygen gets to cells rapidly because the heart beats .Arms and legs get blood flowing to them. The skin and digestive system get blood.The pupils of the eyes get , so it is easierto see.Adrenalines EffectsScience Explorer Grade 7 Guided Reading and Study Workbook 117Prentice-Hall, Inc.Name ____________________________________ Date __________ Class ___________________32. What do the reactions of adrenaline prepare the body for?Long-Term Stress (page 343)33. Is the following sentence true or false? The alarm stage of stress lasts fora long time.34. Is the following sentence true or false? Even if a stressful situation does not go away, the body can still restore homeostasis.35. What can happen to your body if you do not deal with stress?36. Circle the letter of each sentence that is true about dealing with stress.a. It is important to ignore stressful situations so that they will go away.b. If you accept that you have a problem and deal with it, then yourstress will decrease.c. You can avoid stress entirely.d. Talking to family members and friends about the stressful situationwill help.A concept map is a useful tool to show the relationships between concepts. This helps makethe concepts easier to understand. Make a concept map to show the levels of organization incomplex organisms. For more information about concept maps, see page 660 in the SkillsHandbook of your textbook. Do your work on a separate sheet of paper.Reading Skill Practice118 Guided Reading and Study Workbook Science Explorer Grade 7Prentice-Hall, Inc.Name ____________________________________ Date __________ Class ___________________The Skeletal System(pages 344-351)This section describes the skeletal system and its function. It also tells how to keep yourbones strong and healthy.Functions of the Skeletal System (pages 344346)1. List the five major functions of the skeleton.a.b.c.d.e.2. Is the following sentence true or false? The structures of an organismsorgans and organ systems are related to the functions they perform.3. The 26 small bones that make up the backbone are the .4. Is the following sentence true or false? Since the backbone is just one long bone, it allows your body to easily bend and twist.5. How does the skeleton help the body move?6. Circle the letter of the bone that protects the brain.a. backbone b. pelvic girdle c. ribs d. skull7. The long bones of the arms and legs make .8. Calcium and phosphorus are that are stored inbones.SECTION102CHAPTER 10, Bones, Muscles, and Skin (continued)Science Explorer Grade 7 Guided Reading and Study Workbook 119Prentice-Hall, Inc.Name ____________________________________ Date __________ Class ___________________BonesStrong and Living (pages 346-347)9. Circle the letter of each sentence that is true about bones.a. Bones are very strong and lightweight.b. Concrete can absorb more force without breaking than can bone.c. Bones make up over half of an adults body weight.d. Bones are hard because they contain minerals.10. When do bone cells form new bone tissue?The Structure of Bones (pages 347348)11. Label the parts of the bone in the diagram below.Match each part of a bone with its characteristics.Bone Parts12. marrow13. outer membrane14. compact bone15. spongy boneCharacteristicsa. Where blood vessels and nerves enter and leave the boneb. Has small canals with blood vessels running throughc. Strong, but lightweight layer becauseit has many small spaces within itd. Soft connective tissue in the spaces in bone120 Guided Reading and Study Workbook Science Explorer Grade 7Prentice-Hall, Inc.CHAPTER 10, Bones, Muscles, and Skin (continued)Name ____________________________________ Date __________ Class ___________________How Bones Form (page 348)16. A connective tissue that is more flexible than bone is called .17. Circle the letter of each sentence that is true about how bones form.a. Much of an infants skeleton is bone.b. As the body grows, the cartilage in the skeleton is replaced with hardbone tissue.c. By the time the body stops growing, all of the cartilage has beenreplaced with bone.d. Cartilage covers the ends of many bones in the body of an adult.Joints of the Skeleton (pages 348350)18. What is a joint?19. What are the two kinds of joints in the body?a. b.20. Circle the letter of the bones that are held together by immovable joints.a. knee b. ankle c. ribs d. shoulder blade21. Complete the table to show the four types of movable joints.Movable JointsJoint Kind of Motion Where Its Found in the BodyBall-and-socketHingePivotGlidingScience Explorer Grade 7 Guided Reading and Study Workbook 121Prentice-Hall, Inc.Name ____________________________________ Date __________ Class ___________________22. The bones in movable joints are held together by strong connective tissues called .Taking Care of Your Bones (pages 350351)23. What can you do to keep your bones healthy?24. A condition in which the bodys bones become weak and break easily is called .The Muscular System(pages 352-356)This section tells about the three kinds of muscle tissue in the human body, howmuscles work to move the body, and how to care for your muscles.Muscle Action (page 352)1. List the two groups of muscles in the body and describe how they arecontrolled.a.b.2. Circle the letter of the action that is controlled by involuntary muscles.a. smiling b. breathing c. walking d. standing upSECTION103Photographs and illustrations help explain the ideas described in the reading. Look at Figure 10on page 348. What idea is this photograph communicating? Do your work on a separate sheetof paper.Reading Skill Practice122 Guided Reading and Study Workbook Science Explorer Grade 7Prentice-Hall, Inc.Name ____________________________________ Date __________ Class ___________________Types of Muscles (pages 353355)3. Complete the table to compare and contrast the three types of muscletissue in the body.CHAPTER 10, Bones, Muscles, and Skin (continued)4. A strong connective tissue that attaches muscles to bone is a(n) .5. List two characteristics of skeletal muscles.a.b.6. Is the following sentence true or false? Smooth muscles react more quickly and tire more easily than skeletal muscles.7. The repeated contractions of cardiac muscle are called .Muscles at Work (page 355)8. When do muscles contract, or become shorter and thicker?9. Is the following sentence true or false? Muscle cells can extend, or get longer, as well as contract, or get shorter.Types of MusclesMuscles Location in Body Voluntary or Involuntary Striated or NotSkeletalInside many internal organsCardiacScience Explorer Grade 7 Guided Reading and Study Workbook 123Prentice-Hall, Inc.Name ____________________________________ Date __________ Class ___________________10. Why do skeletal muscles work in pairs to move a bone?11. To bend the elbow, the biceps muscle and the triceps muscle returns to its .Taking Care of Your Skeletal Muscles (page 356)12. Circle the letter of the sentence that is true about taking care of muscles.a. Exercise makes muscles thicker and stronger.b. Warming up muscles before exercise makes muscles more flexible.c. Muscles never get injured if you take proper care of them.d. Dont rest an injured muscle, it will heal on its own.13. What causes a muscle strain, or pulled muscle?14. What happens when a muscle cramps?The Skin(pages 358-364)This section explains the structure of skin, what skin does, and how to keep skin healthy.The Bodys Tough Covering (pages 358359)1. Circle the letter of each sentence that is true about the skin.a. The skin lets disease-causing microorganisms and harmfulsubstances into the body.b. The skin keeps water from escaping from the body.c. The skin helps the body maintain homeostasis.d. The skin gathers information about the environment.SECTION104124 Guided Reading and Study Workbook Science Explorer Grade 7Prentice-Hall, Inc.Name ____________________________________ Date __________ Class ___________________2. Is the following sentence true or false? To cool the body, blood vesselsin the skin enlarge to let more blood run through them to move body heat to the outside.3. Why are pain messages important to the body?4. Skin cells produce in the presence of sunlight.The Epidermis (pages 360361)5. The outermost layer of skin is the .6. Is the following sentence true or false? Nerves and blood vessels run through the epidermis.7. New cells that form deep in the epidermis gradually move upward to the surface of the skin, where after about , the cells die.8. Is the following sentence true or false? The layer of dead cells on the surface of the skin gives the most protection to the body.9. Is the following sentence true or false? Melanin, a pigment that gives skin its color, protects the skin from burning in sunlight.The Dermis (page 361)10. The lower layer of the skin is the .11. What is the role of the layer of fat below the dermis?12. Circle the letter of each structure in the dermis.a. hairs b. bones c. sweat glands d. oil glandsCHAPTER 10, Bones, Muscles, and Skin (continued)Science Explorer Grade 7 Guided Reading and Study Workbook 125Prentice-Hall, Inc.Name ____________________________________ Date __________ Class ___________________13. Perspiration reaches the surface of the skin through openings called .14. What are follicles?15. Is the following sentence true or false? Oil produced in glands aroundthe hair follicles waterproofs the hair and keeps the skin moist.Caring for Your Skin (pages 362364)16. Complete the concept map to show how to keep your skin healthy.Keep skin healthyby17. What should you do to replace the water that the skin loses during perspiration?18. A disease in which some body cells divide uncontrollably is called .19. In what two ways does the sun damage your skin?a.b.20. What is acne?126 Guided Reading and Study Workbook Science Explorer Grade 7Prentice-Hall, Inc.Name ____________________________________ Date __________ Class ___________________WordWiseUse the clues below to identify key terms from Chapter 10. Write the terms on the line,putting one letter in each blank. When you finish, the word enclosed in the diagonal lineswill reveal the name of the outermost layer of skin.Clues1. The basic unit of structure and function in a living thing2. An opening in the dermis through which perspiration reaches the surface of the skin3. A place in the body where two bones come together4. A strong connective tissue that attaches muscle to bone5. A group of similar cells that perform the same function6. A soft connective tissue found in the spaces in bone7. The process by which the bodys internal environment is kept in equilibrium.8. A connective tissue that makes up the skeleton that is more flexible than bone9. Muscles attached to the bones of the skeleton are ____ muscles.Key Terms1.2.3.4.5.6.7.8.9.CHAPTER 10, Bones, Muscles, and Skin (continued)How to Use the Unit Resources LibraryUnit Resources: Grade 7Introduction to ScienceLesson PlanSection SummaryReview and ReinforceEnrich: Discovering a New MonkeySkills Lab: Keeping Flowers FreshUnit 1: Interactions Between Matter and EnergyCh. 1: The Properties of MatterCh. 1 Project: Getting Organized1-1 Matter and Changes in Matter1-1 Lesson Plan1-1 Section Summary1-1 Review and Reinforce1-1 Enrich: Separation Science1-2 Organizing the Elements1-2 Lesson Plan1-2 Section Summary1-2 Review and Reinforce1-2 Enrich: Periodic Puzzler1-2 Skills Lab: Comparing Atom Sizes1-3 Metals1-3 Lesson Plan1-3 Section Summary1-3 Review and Reinforce1-3 Enrich: More Properties of Metals1-3 Real-World Lab: Testing 1, 2, 31-4 Nonmetals and Metalloids1-4 Lesson Plan1-4 Section Summary1-4 Review and Reinforce1-4 Enrich: Nonmetals in the AtmosphereCh. 2 Elements Forming CompoundsCh. 2 Project: Model Compounds2-1 Atoms and Ionic Bonds2-1 Lesson Plan2-1 Section Summary2-1 Review and Reinforce2-1 Enrich: Pulling Away Electrons2-1 Skills Lab: Shape Up!2-2 Atoms and Covalent Bonds2-2 Lesson Plan2-2 Section Summary2-2 Review and Reinforce2-2 Enrich: Oil Spills2-2 Skills Lab: Shedding Light on Chemical Bonds2-3 Integrating Earth Science: Crystal Chemistry2-3 Lesson Plan2-3 Section Summary2-3 Review and Reinforce2-3 Enrich: How Hard Is Hard?Ch. 3 Everyday Changes in SubstancesCh. 3 Project: Make Your Own Indicator3-1 Understanding Solutions3-1 Lesson Plan3-1 Section Summary3-1 Review and Reinforce3-1 Enrich: Concentration, Solubility, and Boiling Point3-1 Skills Lab: Speedy Solutions3-2 Describing Acids and Bases3-2 Lesson Plan3-2 Section Summary3-2 Review and Reinforce3-2 Enrich: Acidic Paper3-3 Acids and Bases in Solution3-3 Lesson Plan3-3 Section Summary3-3 Review and Reinforce3-3 Enrich: Swimming Pool Basics3-3 Real -World Lab: The Antacid Test3-4 Integrating Life Science: Digestion and pH3-4 Lesson Plan3-4 Section Summary3-4 Review and Reinforce3-4 Enrich: Blood and pHCh. 4 Motion and ForcesCh.4 Project: Newton Scooters4-1 The Nature of Force and Motion4-1 Lesson Plan4-1 Section Summary4-1 Review and Reinforce4-1 Enrich: Measuring Acceleration4-1 Skills Lab: Forced to Accelerate4-2 Force, Mass, and Acceleration4-2 Lesson Plan4-2 Section Summary4-2 Review and Reinforce4-2 Enrich: Force, Acceleration, and Proportions4-3 Friction and Gravity4-3 Lesson Plan4-3 Section Summary4-3 Review and Reinforce4-3 Enrich: The Great Pyramids4-4 Action and Reaction4-4 Lesson Plan4-4 Section Summary4-4 Review and Reinforce4-4 Enrich: Life Saving Barrier4-5 Forces in Fluids4-5 Lesson Plan4-5 Section Summary4-5 Review and Reinforce4-5 Enrich: A Wing for All Circumstances4-5 Real-World Lab: Spinning SprinklersCh. 5 Work and MachinesCh. 5 Project: The Nifty Lifting Machine5-1 What Is Work?5-1 Lesson Plan5-1 Section Summary5-1 Review and Reinforce5-1 Enrich: Exploring Work, Direction, and Weight5-2 Mechanical Advantage and Efficiency5-2 Lesson Plan5-2 Section Summary5-2 Review and Reinforce5-2 Enrich: An Ancient Machine5-2 Skills Lab: Seesaw Science5-3 Simple Machines5-3 Lesson Plan5-3 Section Summary5-3 Review and Reinforce5-3 Enrich: Really Compound Machines5-3 Real-World Lab: Angling for Access5-4 Integrating Life Science: Machines in Human Systems5-4 Lesson Plan5-4 Section Summary5-4 Review and Reinforce5-4 Enrich: Pulleys in the Human MachineCh. 6 Energy and PowerCh. 6 Project: Roller Coaster!6-1 The Nature of Energy6-1 Lesson Plan6-1 Section Summary6-1 Review and Reinforce6-1 Enrich: The Come-Back Can6-1 Skills Lab: Soaring Straws6-2 Energy Conversion and Conservation6-2 Lesson Plan6-2 Section Summary6-2 Review and Reinforce6-2 Enrich: Orbits, Ellipses, and Energy6-3 Integrating Life Science: Photosynthesis and Fossil Fuels6-3 Lesson Plan6-3 Section Summary6-3 Review and Reinforce6-3 Enrich: The Energy We Use6-4 Integrating Mathematics: Power6-4 Lesson Plan6-4 Section Summary6-4 Review and Reinforce6-4 Enrich: Power from the Power Company6-4 Real-World Lab: Can You Feel the Power?Unit 1 Answer Key: Interactions Between Matter and EnergyUnit 2: Earth and Space Systems--Change and StabilityCh. 7 Weathering and Soil FormationCh. 7 Project: Soils for Seeds7-1 Rocks and Weathering7-1 Lesson Plan7-1 Section Summary7-1 Review and Reinforce7-1 Enrich: Why Are Many Rocks Round?7-1 Skills Lab: Rock Shake7-2 Soil Formation and Composition7-2 Lesson Plan7-2 Section Summary7-2 Review and Reinforce7-2 Enrich: Different Soils for Different Climates7-2 Real World Lab: Getting to Know the Soil7-3 Integrating Environmental Science: Soil Conservation7-3 Lesson Plan7-3 Section Summary7-3 Review and Reinforce7-3 Enrich: Does Contour Plowing Work?Ch. 8 Erosion and DepositionCh. 8 Project: Changes in the Land8-1 Changing Earth's Surface8-1 Lesson Plan8-1 Section Summary8-1 Review and Reinforce8-1 Enrich: It's Creepy8-1 Skills Lab: Sand Hills8-2 Water Erosion8-2 Lesson Plan8-2 Section Summary8-2 Review and Reinforce8-2 Enrich: Great Rivers of the World8-2 Real-World Lab: Streams In Action8-3 Integrating Physics: The Force of Moving Water8-3 Lesson Plan8-3 Section Summary8-3 Review and Reinforce8-3 Enrich: Factors That Affect a River's Speed8-4 Glaciers8-4 Lesson Plan8-4 Section Summary8-4 Review and Reinforce8-4 Enrich: Profile of a Glacier8-5 Waves and Wind8-5 Lesson Plan8-5 Section Summary8-5 Review and Reinforce8-5 Enrich: Kinds of Sand Dunes8-6 Earth Systems and Catastrophic Events8-6 Lesson Plan8-6 Section Summary8-6 Review and Reinforce8-6 Enrich: Tornado WeatherCh. 9 The Earth-Moon SystemCh. 9 Project: Where's the Moon?9-1 Earth in Space9-1 Lesson Plan9-1 Section Summary9-1 Review and Reinforce9-1 Enrich: Build a Simple Sundial9-1 Skills Lab: Reasons for the Seasons9-2 Phases, Eclipses, and Tides9-2 Lesson Plan9-2 Section Summary9-2 Review and Reinforce9-2 Enrich: Lunar Calendars9-2 Skills Lab: A "Moonth" of Phases9-3 Earth's Moon9-3 Lesson Plan9-3 Section Summary9-3 Review and Reinforce9-3 Enrich: The Development of Lunar Landscapes9-4 Integrating Life Science: Is There Life Beyond Earth?9-4 Lesson Plan9-4 Section Summary9-4 Review and Reinforce9-4 Enrich: Planets for Human SettlementUnit 2 Answer Key: Earth and Space Systems--Change and StabilityUnit 3: Living Systems--Structure and FunctionCh. 10: Bones, Muscles, and SkinCh. 10 Project: On the Move10-1 Body Organization and Homeostasis10-1 Lesson Plan10-1 Section Summary10-1 Review and Reinforce10-1 Enrich: Stress: Benefits, Risks, and Choices10-2 The Skeletal System10-2 Lesson Plan10-2 Section Summary10-2 Review and Reinforce10-2 Enrich: A Pain in the Back10-3 The Muscular System10-3 Lesson Plan10-3 Section Summary10-3 Review and Reinforce10-3 Enrich: Pumping Iron10-3 Skills Lab: A Look Beneath the Skin10-4 The Skin10-4 Lesson Plan10-4 Section Summary10-4 Review and Reinforce10-4 Enrich: Burns10-4 Real-World Lab: Sun SafetyCh. 11 Food and DigestionCh. 11 Project: What's on Your Menu?11-1 Integrating Chemistry: Food and Energy11-1 Lesson Plan11-1 Section Summary11-1 Review and Reinforce11-1 Enrich: Sugar Substitutes11-1 Real-World Lab: Iron for Breakfast11-2 The Digestive Process Begins11-2 Lesson Plan11-2 Section Summary11-2 Review and Reinforce11-2 Enrich: Stomach Ulcers11-2 Skills Lab: As the Stomach Churns11-3 Final Digestion and Absorption11-3 Lesson Plan11-3 Section Summary11-3 Review and Reinforce11-3 Enrich: Lactose IntoleranceCh. 12 CirculationCh. 12 Project: Travels of a Red Blood Cell12-1 The Body's Transportation System12-1 Lesson Plan12-1 Section Summary12-1 Review and Reinforce12-1 Enrich: Heart Murmurs12-2 A Closer Look at Blood Vessels12-2 Lesson Plan12-2 Section Summary12-2 Review and Reinforce12-2 Enrich: Blood Pressure12-2 Skills Lab: Heart Beat, Health Beat12-3 Blood and Lymph12-3 Lesson Plan12-3 Section Summary12-3 Review and Reinforce12-3 Enrich: More About Blood Types12-3 Real-World Lab: Do You Know Your A-B-O's?12-4 Integrating Health: Cardiovascular Health12-4 Lesson Plan12-4 Section Summary12-4 Review and Reinforce12-4 Enrich: Bypass SurgeryCh. 13 Respiration and ExcretionCh. 13 Project: Get the Message Out13-1 The Respiratory System13-1 Lesson Plan13-1 Section Summary13-1 Review and Reinforce13-1 Enrich: Analyzing a Spirogram13-1 Skills Lab: A Breath of Fresh Air13-2 Integrating Health: Smoking and Your Health13-2 Lesson Plan13-2 Section Summary13-2 Review and Reinforce13-2 Enrich: Analyzing Smoking Costs13-3 The Excretory System13-3 Lesson Plan13-3 Section Summary13-3 Review and Reinforce13-3 Enrich: Urinalysis13-3 Real-World Lab: Clues About HealthCh. 14 Fighting DiseaseCh. 14 Project: Stop the Invasion!14-1 Infectious Disease14-1 Lesson Plan14-1 Section Summary14-1 Review and Reinforce14-1 Enrich: Stopping Malaria14-2 The Body's Defenses14-2 Lesson Plan14-2 Section Summary14-2 Review and Reinforce14-2 Enrich: Inflammation: Clue to Infection14-2 Real-World Lab: The Skin as a Barrier14-3 Integrating Health: Preventing Infectious Disease14-3 Lesson Plan14-3 Section Summary14-3 Review and Reinforce14-3 Enrich: Testing a Vaccine14-3 Skills Lab: Causes of Death, Then and Now14-4 Noninfectious Disease14-4 Lesson Plan14-4 Section Summary14-4 Review and Reinforce14-4 Enrich: Leading Noninfectious DiseasesCh. 15 The Nervous SystemCh. 15 Project: Tricks and Illusions15-1 How the Nervous System Works15-1 Lesson Plan15-1 Section Summary15-1 Review and Reinforce15-1 Enrich: Polygraph Test15-1 Skills Lab: Ready or Not15-2 Divisions of the Nervous System15-2 Lesson Plan15-2 Section Summary15-2 Review and Reinforce15-2 Enrich: Sleep and Your Brain15-3 The Senses15-3 Lesson Plan15-3 Section Summary15-3 Review and Reinforce15-3 Enrich: Color Vision, Colorblindness15-4 Integrating Health: Alcohol and Other Drugs15-4 Lesson Plan15-4 Section Summary15-4 Review and Reinforce15-4 Enrich: Alcohol-Related Traffic Deaths15-4 Real-World Lab: With Caffeine or Without?Ch. 16 The Endocrine System and ReproductionCh. 16 Project: A Precious Bundle16-1 The Endocrine System16-1 Lesson Plan16-1 Section Summary16-1 Review and Reinforce16-1 Enrich: A Balancing Act16-2 The Male and Female Reproductive Systems16-2 Lesson Plan16-2 Section Summary16-2 Review and Reinforce16-2 Enrich: Fertilization16-3 Integrating Health: The Human Life Cycle16-3 Lesson Plan16-3 Section Summary16-3 Review and Reinforce16-3 Enrich: Intellectual Development16-3 Skills Lab: Growing Up16-4 Reproduction and Genetics16-4 Lesson Plan16-4 Section Summary16-4 Review and Reinforce16-4 Enrich: A Pedigree16-4 Real-World Lab: Two for the Price of OneUnit 3 Answer Key: Living Systems--Structure and FunctionUnit 4: Organisms and Their EnvironmentCh. 17 Ecosystems and BiomesCh. 17 Project: Breaking It Down17-1 Energy Flow in Ecosystems17-1 Lesson Plan17-1 Section Summary17-1 Review and Reinforce17-1 Enrich: Food Webs at Hydrothermal Vents17-2 Integrating Earth Science: Biogeography17-2 Lesson Plan17-2 Section Summary17-2 Review and Reinforce17-2 Enrich: Organisms and Continental Drift17-2 Real-World Lab: Biomes in Miniature17-3 Earth's Biomes17-3 Lesson Plan17-3 Section Summary17-3 Review and Reinforce17-3 Enrich: Earth's Land Biomes17-3 Skills Lab: Change in a Tiny Community17-4 Succession: Equilibrium in Ecosystems17-4 Lesson Plan17-4 Section Summary17-4 Review and Reinforce17-4 Enrich: From Pond to ForestCh. 18 Relating to the EnvironmentCh. 18 Project: Learning New Tricks18-1 Adaptations and the Environment18-1 Lesson Plan18-1 Section Summary18-1 Review and Reinforce18-1 Enrich: Cnidarians and Nematocysts18-2 Animal Behavior18-2 Lesson Plan18-2 Section Summary18-2 Review and Reinforce18-2 Enrich: A Simple Insight18-2 Skills Lab: Becoming a Learning Detective18-3 Patterns of Behavior18-3 Lesson Plan18-3 Section Summary18-3 Review and Reinforce18-3 Enrich: The Language of Honeybees18-3 Real World-Lab: One for AllCh. 19 Living ResourcesCh. 19 Project: Variety Show19-1Integrating Environmental Science: Environmental Issues19-1 Lesson Plan19-1 Section Summary19-1 Review and Reinforce19-1 Enrich: Future Population Growth19-1 Real-World Lab: Is Paper a Renewable Resource?19-2 Forests and Fisheries19-2 Lesson Plan19-2 Section Summary19-2 Review and Reinforce19-2 Enrich: Modern Fishing Equipment19-2 Skills Lab: Tree Cookie Tales19-3 Biodiversity19-3 Lesson Plan19-3 Section Summary19-3 Review and Reinforce19-3 Enrich: Endangered SpeciesInterdisciplinary Exploration: African Rain ForestSocial StudiesLanguage ArtsScienceMathematicsUnit 4 Answer Key: Organisms and Their EnvironmentTransparencies: Grade 7Ch. 1 The Properties of MatterModel of a Nitrogen AtomModels of Sodium Chloride and Diatomic HydrogenCh. 2 Elements Forming CompoundsModel of a Carbon AtomElectron Dot DiagramsValence Electrons and the Periodic TableExploring Ionic BondsElectron Dot Diagrams of Atoms and MoleculesPolar and Nonpolar BondsCh. 3 Everyday Changes in SubstancesSolution of an Ionic SolidEffect of Solutes on Freezing and BoilingStrong and Weak Acids in SolutionpH ScaleCarbohydrate Digestion and Protein DigestionCh. 4 Motion and ForcesExploring Combined ForcesAir ResistanceLaw of Universal GravitationConservation of MomentumExploring WingsCh. 5 Work and MachinesWork and ForceMachinesExploring the Three Classes of LeversPulleysExploring Levers in the BodyCh. 6 Energy and PowerKinetic EnergyEnergy ConversionsThe PendulumExploring Energy ConversionsCh. 7 Weathering and Soil FormationForces of Mechanical WeatheringSoil Composition and Soil HorizonsExploring Living Organisms in SoilSoils of North AmericaCh. 8 Erosion and DepositionLandslide, Slump, and CreepRills and GulliesExploring the Course of a RiverWater Erosion, Deposition, and Movement of SedimentExploring Glacial LandformsWave Erosion and Wind ErosionCh. 9 The Earth-Moon SystemExploring Solstices and EquinoxesExploring the Cyclical Phases of the MoonSolar EclipsesLunar EclipsesHigh and Low TidesCollision Theory of the Moon's OriginCh. 10 Bones, Muscles, and SkinThe Human SkeletonThe Structure of a BoneExploring Movable JointsThe SkinCh. 11 Food and DigestionThe Food Guide PyramidThe Digestive SystemCh. 12 CirculationExploring the HeartArtery, Capillary, and VeinCh. 13 Respiration and ExcretionExploring the Respiratory SystemGas Exchange in the AlveoliExploring a KidneyCh. 14 Fighting DiseasesExploring the Immune ResponseCh. 15 The Nervous SystemExploring the Path of a Nerve ImpulseThe BrainThe EyeThe EarCh. 16 Reproduction and GeneticsExploring the Endocrine SystemThe Male Reproductive SystemThe Female Reproductive SystemCh. 17 Ecosystems and BiomesExploring a Food WebAn Energy PyramidPrimary and Secondary SuccessionCh. 18 Relating to the EnvironmentPavlov's ExperimentExploring a Honeybee SocietyCh. 19 Living ResourcesLogging MethodsAppendicesCompound MicroscopeTriple-Beam BalancePeriodic Table of the ElementsChapter and Unit Tests: Grade 7Introduction TestCh. 1 Test: The Properties of MatterCh. 2 Test: Elements Forming CompoundsCh. 3 Test: Everyday Changes in SubstancesCh. 4 Test: Motion and ForcesCh. 5 Test: Work and MachinesCh. 6 Test: Energy and PowerUnit 1 Test: Interactions Between Matter and EnergyCh. 7 Test: Weathering and Soil FormationCh. 8 Test: Erosion and DepositionCh. 9 Test: The Earth-Moon SystemUnit 2 Test: Earth and Space Systems--Change and StabilityCh. 10 Test: Bones, Muscles, and SkinCh. 11 Test: Food and DigestionCh. 12 Test: CirculationCh. 13 Test: Respiration and ExcretionCh. 14 Test: Fighting DiseaseCh. 15 Test: The Nervous SystemCh. 16 Test: The Endocrine System and ReproductionUnit 3 Test: Living Systems--Structure and FunctionCh. 17 Test: Ecosystems and BiomesCh. 18 Test: Relating to the EnvironmentCh. 19 Test: Living ResourcesUnit 4 Test: Organisms and Their EnvironmentAnswer Key: Grade 7 Chapter and Unit TestsPerformance Assessments: Grade 7Introduction: Apples and LemonsCh. 1 Chemical Photo AlbumCh. 2 Bonds and CompoundsCh. 3 Clean MoneyCh. 4 Newton's BananaCh. 5 Machine ManiaCh. 6 Water WheelCh. 7 Which Soil is Best for Plants?Ch. 8 A Model LandscapeCh. 9 Lunar and Solar EclipsesCh. 10 Skin and BonesCh. 11 Food FlightCh. 12 Modeling BloodCh. 13 Waste DoctorCh. 14 Modeling the Immune ResponseCh. 15 Keep Your Eye on the BallCh. 16 The Time of Your LifeCh. 17 Identifying BiomesCh. 18 Observing Pill Bug BehaviorCh. 19 Endangered Animal SpeciesAnswer Key: Grade 7 Performance AssessmentsInquiry Skills Activity BookBasic Process SkillsObservingInferringPredictingClassifyingMaking ModelsCommunicatingMeasuringCalculatingDesigning ExperimentsDesigning an ExperimentPosing QuestionsDeveloping a HypothesisControlling VariablesForming Operational DefinitionsInterpreting DataDrawing ConclusionsData Tables and GraphsCreating Data TablesCreating Bar GraphsCreating Line GraphsCreating Circle GraphsSkills AssessmentTest A: Basic Process SkillsTest B: Measuring and CalculatingTest C: Designing ExperimentsTest D: Data Tables and GraphsAnswer Key: Inquiry Skills Activity BookGuided Reading and Study Workbook: Grade 7Student EditionIntroductionCh. 1 The Properties of MatterCh. 2 Elements Forming CompoundsCh. 3 Everyday Changes in SubstancesCh. 4 Motion and ForcesCh. 5 Work and MachinesCh. 6 Energy and PowerCh. 7 Weathering and Soil FormationCh. 8 Erosion and DepositionCh. 9 The Earth-Moon SystemCh. 10 Bones, Muscles, and SkinCh. 11 Food and DigestionCh. 12 CirculationCh. 13 Respiration and ExcretionCh. 14 Fighting DiseasesCh. 15 The Nervous SystemCh. 16 The Endocrine System and ReproductionCh. 17 Ecosystems and BiomesCh. 18 Relating to the EnvironmentCh. 19 Living ResourcesTeacher's EditionIntroductionCh. 1 The Properties of MatterCh. 2 Elements Forming CompoundsCh. 3 Everyday Changes in SubstancesCh. 4 Motion and ForcesCh. 5 Work and MachinesCh. 6 Energy and PowerCh. 7 Weathering and Soil FormationCh. 8 Erosion and DepositionCh. 9 The Earth-Moon SystemCh. 10 Bones, Muscles, and SkinCh. 11 Food and DigestionCh. 12 CirculationCh. 13 Respiration and ExcretionCh. 14 Fighting DiseasesCh. 15 The Nervous SystemCh. 16 The Endocrine System and ReproductionCh. 17 Ecosystems and BiomesCh. 18 Relating to the EnvironmentCh. 19 Living Resources

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