Click below to read a summary of the sunbathing project ideas for Bronze, Silver, and Gold awards; or to go back to project ideas click here.
CREST Bronze Award – typically 10 hours of project work
Investigate the strength of ultra violet (UV) rays from the sun
Carry out an experiment to find out when the sun’s UV is the strongest and if it depends on the temperature.
Do you think there will be a relationship between the two? For example, will the UV be highest when the temperature is highest?
When do you think the hottest part of the day will be? Make sure you give reasons.
Choose a sunny day to do your experiment.
CREST Silver Award – typically 30 hours of project work
Investigate how well sun creams and sun blocks protect against UV radiation
You should start this project with some research. Find out about the electromagnetic spectrum and radiation from the sun. Find out why UV radiation is damaging to people’s skin.
Find out what different sun protection factors (SPFs) mean on sun cream and sun block
Find out about ways of measuring radiation from the sun. There are different types of UV sensor available; you might like to compare them to see which is most effective.
You might also like to visit local universities or other places with suitable equipment to find out if there are more accurate ways of measuring UV. A weather centre, perhaps from the closest regional television station, may be able to help
You then need to develop a method to work out how much of the sun’s radiation is blocked by a variety of sun creams and sun blocks
Remember: although you have researched the effect of radiation on the skin, you shouldn’t use actual people to conduct experiments.
CREST Gold Award – typically 70+ hours of project work
Compare different suns creams and sun blocks
Conduct some research into the dangers of over-exposure to the sun.
Try to find ways of measuring UV radiation. Find out if it’s possible to measure UVA and UVB. Contact a university to see if it has a UV detector you could use.
It would be good if you could link up with a chemist working for a sun cream manufacturer or an analytical chemist in a university. They should know how sun creams are tested in industry.