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WorksheetsSun Safety Quiz
Total questions: 12
Worksheet time: 6mins
The sun produces energy that reaches Earth as electromagnetic radiation. Which part is most harmful to human skin?
Visible light
Infrared radiation
Ultraviolet (UV) radiation
Radio waves
Which type of UV radiation is completely absorbed by the atmosphere and never reaches the surface?
UVA
UVB
UVC
UVX
Why is the UV Index important to check before going outdoors?
It measures ozone levels in the air
It predicts how quickly UV rays can damage skin DNA
It shows if the day will be cloudy or sunny
It tells you how much vitamin D you will make
Reflected UV radiation can increase exposure. Which surfaces reflect the most UV?
Grass and dirt
Snow, sand, and water
Asphalt and concrete
Wood and leaves
What specifically happens to DNA when it is damaged by UV radiation?
Bases break apart or bonds between them are disrupted
Extra chromosomes are added
DNA becomes longer
DNA turns into protein
Why does skin cancer usually take many years to appear?
Mutations from UV damage accumulate slowly over time
Only adults make melanin
Children’s skin cells never mutate
Cancer cells cannot divide until adulthood
Which pigment, produced by melanocytes, helps absorb UV radiation and protect DNA?
Hemoglobin
Carotene
Melanin
Keratin
Why is tanning (natural or from tanning beds) considered harmful?
It increases the production of melanin, which signals DNA damage has already occurred
It permanently strengthens the skin
It blocks UVA rays completely
It prevents vitamin D production
What is a common reason sunscreen fails to protect skin effectively?
The SPF number changes after opening
Most people apply too little or miss spots
Sunscreen blocks only heat, not radiation
It stops working on darker skin tones
What does SPF stand for on sunscreen bottles?
Sun Protection Factor
Skin Protection Formula
Safe Product for Faces
Sun Prevention Filter
Excessive UV radiation can damage the eyes. Which conditions can result?
Cataracts, abnormal growths, and even eye cancers
Only temporary blurry vision
Permanent color blindness only
Nothing, because the cornea blocks all UV
If sunscreen reduces vitamin D production in the skin, what is the safe scientific solution?
A) Spend time outdoors without sunscreen
B) Use tanning beds instead of natural sunlight
C) Take vitamin D as an oral supplement
D) Rely only on melanin for protection
