Sunburn, Sweat and the Science of Summer!

The video explores various summer science topics, starting with the function of sweat glands in cooling the body. It explains the difference between Ekron and Apocrine glands and how sweat cools the body. The video then discusses why fingers prune in water, revealing it's an active process that improves grip. It also covers the effects of UV radiation on the skin, explaining how sunburn occurs and the role of SPF in protection. The video concludes by encouraging viewers to explore science outdoors.

What is the primary function of Ekron sweat glands?

• To protect against UV rays

• To secrete hormones

• To cool the body

• To produce body odor

Why do fingers get pruney in water?

• Due to an active process controlled by nerves

• Because they absorb water

• Due to a chemical reaction with water

• Because of dehydration

What is the main cause of sunburn?

• Fire

• Radiation

• Chemical exposure

• Friction

What does SPF in sunscreens measure?

• Protection against infrared rays

• Protection against UVB rays

• Protection against visible light

• Protection against UVA rays

What can happen to DNA when exposed to UV rays?

• It becomes more flexible

• It turns into RNA

• It can form thymine dimers

• It becomes stronger