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Complete the following passage using the words in the pull down menus. (6 marks)

X-rays were discovered by Wilhelm Roentgen in 1895. They had not been known before because they are .
We can use to detect them.
X-rays are dangerous. They can damage living .
People who use x-rays are called . These workers can protect themselves by using screens made of . The metal the x-rays.


The picture below shows an image of a hand made using x-rays. (4 marks)


a) Why are some areas of the image dark and some light?

b) How would a broken bone be spotted in an x-ray image?

Total (10 marks)

Press when finished