Sun safety Flashcards
Why do you need Vitamin D?
For strong and healthy bones, helps to absorb calcium
What are the 3 types of UV rays?
UVA, UVB and UVC
Which of the 3 types of UV rays are more?
UVA
Which type of UV rays easily pass through the ozone layer?
UVA
What is the ozone layer?
The layer in the earth’s atmosphere that acts as a protective shield
What are the dangerous effects of the UV rays on the human body?
Sunburns, skin cancer and cataracts in the eyes
Which is the most dangerous form of skin cancer?
Melanoma
Does ozone layer absorb UVB rays?
Yes, most but not all are absorbed
Does ozone layer absorb UVC rays?
Yes, completely
What is melanin?
Skin pigment that absorbs UV rays before they cause skin damage.
What will happen to people with a very light skin colour?
They have much less melanin, so they are at higher risk of skin damage when exposed to sun, so at high risk of sunburn and skin cancer.
What is skin tanning?
Changes in skin colour because of too much melanin on sun exposure
Which times of the day is the sun strongest?
Between 10 and 4 pm
What is called as invisible sun?
Sun rays that come through the clouds and still cause damage
What are the different ways by which you can protect yourself from the sun>
By covering up, by using sunscreen and by using protective eyewear
What is SPF?
Sun Protective factor
What is the ideal SPF that will help protect your skin?
SPF 30 and above
How often should you reapply sunscreen when exposed to sun?
Every 2 hours
Where was Marie Curie born?
Poland
Why did she move to France?
To pursue her interest in science. At that time in Poland, women were not allowed in universities.
How did Marie Curie help out in the First World war?
By inventing x-ray machines and helping soldiers
Who was her husband?
Pierre Curie
What was the name of the asteroid named after Curie?
7000 Curie
Where was the highest temperature recorded recently?
Death Valley in Mojave Desert, California- 54.4 degrees
