OUTCOME
By the end of the lesson you will be able to explain how x-rays are used to make images of the body, know what type of x-rays make better images and how the x-rays are produced
Reading Quiz p. 408 - 411
X-rays are able to penetrate tissue bit not bone. An X-ray image is a 'shadow' of the bone as the X-rays are absorbed.
LEARNING TASKS
Explain
What part of the electromagnetic spectrum are X-rays?
Describe how X-rays are formed in an X-ray machine
What is a free radical and why is this important in the x-ray process?
What is the difference between hard and soft X-rays?
Explore & Elaborate
An X-ray is a shadow. Do this Shadow investigationto understand some of the process required to take an X-ray
Watch this clip on the history of x-rays
Evaluate
Attempt the textbook questions
Qs 15-17
Make sure you are up to date with your forum contributions. Remember you should have asked two questions and answered two questions by the end of the fortnight