Web Link Exercises

Unit 6 Diseases and Disorders

Chapter 17, Lesson 2
Understanding the Immune System
Learn more about the workings of the immune system here. What are lymphocytes? How are T- and B-cells related to lymphocytes? After studying this site, summarize what the immune system does in a short paragraph.

Infection!
Have you ever wondered how you get an infection? At this Web site, you will learn about ways you come in contact with germs and tips for helping your immune system stay healthy. After you finish reading about infections, play the infection game.

Chapter 17, Lesson 3
How Lou Got the Flu
Infectious diseases spread from person to person and even from animal to people. The flu virus is a microscopic hitchhiker that can travel great distances in relatively short amounts of time. For example, you can trace Lou's flu back to Chinese ducks. Try to remember the last time you had the flu. Who had it before you? Did anyone catch it after you did? Create a chart that traces your flu as it might have traveled through your friends and family.

Chapter 18, Lesson 2
National Institute of Environmental Health Science - Asthma and Allergies
Allergies are caused by your immune system reacting to irritations from substances in the environment. Allergies make you cry, sneeze, and in more serious cases put your body into shock. Find out what environmental factors can lead to allergies and asthma attacks. On the left side of the page, click on "Air and Your World Indoors" and play the interactive matching "Dust Game."

Asthma and Allergy Foundation of America (AAFA)
Asthma is the leading cause of chronic illness among children and teens, and the number of children affected by asthma continues to grow rapidly each year. Click on "Asthma & Allergies" and create a chart using 5 facts you learned about each condition.

Chapter 18, Lesson 3
Cancer Facts for Kids
Cancer is characterized by malignant tumors that invade the body. There are over a hundred different types of cancer. Find out what causes cancer and demonstrate your knowledge by creating a booklet using the information you find on this site.

Chapter 18, Lesson 4
American Heart Association
It's a fact: Lack of physical activity is a risk factor for heart disease. At this Web site, you will learn how to lower your risk of heart disease and recognize warning signs of heart attack and stroke. Click on the "Exercise & Fitness" link in the "Healthy Lifestyle" area. Create a poster that shows how people can increase physical activity in their daily lives to help lower their risk of heart disease.