contamination

Question 1

radioactive contamination

Answer 1

the unwanted presence of materials containing radioactive atoms on other materials

Question 2

what could happen to contaminated atoms?

Answer 2

they might decay and release radiation

Question 3

why is contamination dangerous?

Answer 3

radioactive particles could get inside your body

Question 4

what should be used when handling sources?

Answer 4

gloves and tongs
protective suits
SHIELDING
monitoring

Question 5

what does the amount of harm caused depend on?

Answer 5

the radiation type

Question 6

which sources are most dangerous outside of the body? why?

Answer 6

beta and gamma as they can penetrate the body and get to delicate organs, unlike alpha as it can’t penetrate the skin

Question 7

which sources are most dangerous inside of the body? why?

Answer 7

alpha as they are highly ionising, they do all their damage in a localised area unlike beta as their radiation is absorbed over a wider area, gamma rays pass out of the body

Question 8

peer-review

Answer 8

-scientists have explored effects of radiation on humans for many years
-important the finding are shared with other scientists
-allows findings to be checked (peer-reviewed)