Web Link Exercises

Unit 2 Keeping Your Body Healthy

Chapter 3, Lesson 2
E-skeletons Projects
Examine pictures of real human bones and view joints from different angles. After studying some of the main bones and joints of the body, use the glossary feature to study terms and view animations of bones and joints in motion.

Chapter 3, Lesson 3
My Body
Pick a body part and present the information you learn about it to your fellow students in class. To make your presentation more interesting, think of a visual or an interactive activity that would demonstrate that organ’s function. For example, a pair of sponges can represent the kidneys. Can you think of other household appliances that could represent the functions of your body?

Cut to the Heart
Place your hands on a flat surface in front of you with the palms up and count how many times you can open and close your hand in one minute. How many times could you do it? Did your hands get tired? Even at rest, your heart works twice as hard as the leg muscles of a sprinter. Study an animated map of the heart and learn how the heart moves blood to supply your whole body with oxygen. Explore the pictures of diseased hearts and learn how surgeons treat heart disease.

Chapter 3, Lesson 4
Bodies in Motion, Minds at Rest
Learn what you can do to get in good shape and stay that way. Set some reasonable goals for yourself. For example, you might try to do more sit-ups, run longer, or lift more weights by the end of the month. Challenge yourself to achieve your goals.

Chapter 4, Lesson 1
USDA: Nutrient Data Laboratory
Search the USDA database for nutritional information of one of your favorite foods. Keep a diary of everything you eat for a day and then calculate your day’s nutritional intake using this database. Are there ways you can improve your diet?

Nutrition, Fruits, and Vegetables
Do you know what phytochemicals are? They are active ingredients found in fruits and vegetables that help your body fight off disease. From this Web site, click on “Fruit and Vegetable Info.” Choose five fruits or vegetables and, using information contained on this site, write a report explaining how they help your body.

Nutrition Café
Tracking down the unhealthy culprits in a diet takes a good understanding of nutritional concepts and, of course, some solid detective work. Become a nutrition sleuth and find the missing nutrients in each of the case files on this site. Can you find them all?

Chapter 4, Lesson 2
Understanding the Food Guide Pyramid
By now, you probably know the Food Guide Pyramid by heart. But do you know what actually counts as a serving in each of the six groups? Write down what you eat for a day and calculate how many servings you consume of each food group. Do you stay within the limits set by the pyramid? If not, what can you change about your eating habits?

Chapter 4, Lesson 4
Human Anatomy Online: InnerBody.com
Do you know what your body looks like on the inside? Can you explain how the digestive system works? Visit this Web site to learn the inside scoop on body systems, organ functions, and much more. Find out more about the digestive system, and then summarize what you have learned in a brief report.

Your Gross and Cool Body
Have you ever wondered where dandruff or hiccups come from? They are both by-products of your body’s natural functions. Read the section on “Bad Breath” and then learn about your body’s sense of smell. Share some of the facts you find here with classmates in a short report.

Chapter 5, Lesson 1
AcneNet
Does chocolate really cause breakouts? Does sunlight really help clear acne? This site dispels common myths and misconceptions about acne and offers advice on treating this common skin problem. Read the facts and myths about acne and list the four basic causes of acne and four ways to treat it.

Healthy Teeth
You probably already know the basics of tooth care: brushing and flossing. But do you know what really causes cavities and why it’s so important to keep your teeth healthy? Make a list of ways you can prevent cavities from ever forming. For fun, also try one of the experiments listed under “Experiments and Activities.”

Chapter 5, Lesson 2
What Do You See?
Have your eyes ever played a trick on you? Those “tricks” are actually optical illusions. Visit this Web site to view a large selection of optical illusions. What do you see as you look at each picture? Are you able to view the image in more than one way? Print these pictures and show them to family and friends to find out what they see. Explore the rest of this site to learn more fun facts about the sense of sight.

Chapter 6, Lesson 3
Human Anatomy Online
If you want to learn more about the human body, this site will provide all the information you need. Find drawings and overviews of body systems, a variety of body animations, and plenty of interesting facts. Quiz yourself by viewing the image of the female reproductive system and identifying its parts. Do you know the function of each? Check your answers by clicking on the various body parts and reading the descriptions.