Page 447: How Speech Sounds are Made
Vocal Sound Production
Follow the diagrams and links on this page to understand how human speech is produced. What parts of the human body are used to produce vocal sounds?
Visit the Exploratorium's page called Vocal Vowels to explore models of the human vocal tract. Observe the different shapes of the resonant chambers and listen to the sounds that come from each one. How does the shape of the model compare to the shape of the vocal tract making the same sound?
Page 450: Secondhand Smoke
Environmental Protection Agency (EPA)
The Environmental Protection Agency (EPA) has studied the effects of second-hand smoke, and they conclude that it poses health risks to children and adults. Read about second-hand smoke to understand how it can impact your health. What are the health risks and how can they be reduced?
Effects of Second-Hand Smoke
This page describes the risks of heart disease and other health dangers from exposure to second-hand smoke. Second-hand smoke is the third largest preventable cause of death in the United States. Visit this site to understand more about how great a health risk second-hand smoke is to people. What are some specific effects of second-hand smoke on the health of children and teenagers?
The Heimlich Maneuver
When should you use the Heimlich Maneuver? Read this article to learn how and when to use the Heimlich Maneuver. What should you do if a victim is unconscious? Make a chart to hang in the classroom that shows the steps of the Heimlich Maneuver.
1st-Aid for Choking
This University of Oklahoma Police Department site gives step-by-step instructions on how to perform the Heimlich Maneuver. What can be done to prevent choking in the first place?
Page 463: Medical Breakthroughs
Kidney Patient Guide
This site supports kidney transplant patients in the United Kingdom. Read about the process for kidney transplants then click the link to see how a kidney is transplanted. What happens to the old kidneys in a patient that receives a replacement kidney?
Renal Replacement Therapy provides information about how a kidney transplant is done. It also describes the factors that may exclude a person from receiving a donated kidney. What are some of the complications that can occur after a person has a kidney transplant?