reduced by screening the contamination can Describe what happens to a week (for raspberries, source or moving the object occur. strawberries are irradiated a couple of days away from it. The irradiated before sending on a long trip. maximum). object does not become Determine how irradiating fruit Students could radioactive. affects the cost of goods and investigate the length of Radioactive contamination is whether there are any risks for time soft fruit can the unwanted presence of a the workers and consumers of survive following various source of radiation inside, or the irradiation food process. treatments (eg freezing, on the surface of, other keeping cold, removing Predict and then research the materials. It is often difficult air, etc) and how the procedures followed by people to remove the contaminating fruit survives the dealing with radioactive source so that it continues to treatment. sources reduces the risk of add to the radiation dose for contamination. Examine footage from as long as it emits radiation. radioactive disasters Describe how decontamination such as Chernobyl and would take place if a person’s Fukushima, eg: clothes or skin have been contaminated by a radioactive (3 mins) source. (8 mins). Explain why contamination by Students can design a highly active alpha source protective clothing for may be a lot more damaging use in a nuclear than a low activity gamma disaster, thinking about source. types of radiation released and penetration of each type.
reduced by screening the source or moving the object away from it. The irradiated object does not become radioactive. Radioactive contamination is the unwanted presence of a source of radiation inside, or on the surface of, other materials. It is often difficult to remove the contaminating source so that it continues to add to the radiation dose for as long as it emits radiation. contamination can occur. Describe what happens to strawberries are irradiated before sending on a long trip. Determine how irradiating fruit affects the cost of goods and whether there are any risks for the workers and consumers of the irradiation food process. Predict and then research the procedures followed by people dealing with radioactive sources reduces the risk of contamination. Describe how decontamination would take place if a person’s clothes or skin have been contaminated by a radioactive source. Explain why contamination by a highly active alpha source may be a lot more damaging than a low activity gamma source. a week (for raspberries, a couple of days maximum). Students could investigate the length of time soft fruit can survive following various treatments (eg freezing, keeping cold, removing air, etc) and how the fruit survives the treatment. Examine footage from radioactive disasters such as Chernobyl and Fukushima, eg: (3 mins) (8 mins). Students can design protective clothing for use in a nuclear disaster, thinking about types of radiation released and penetration of each type.
AQA-8465-SOW-IWE.DOCX