Show:
Structure + Energy
Causes + Effects
Purpose
Discoveries
BONUS
100
The ____ of the UV is between x-rays and visible light.
What is wavelength?
100
What causes sunburn and also decreases the skin's ability to produce collagen and elastin?
What is UVB rays?
100
There are risks and benefits in the exposure of UV ____.
What is radiation?
100
Who discovered UV Rays?
What is Johann Wilhelm Ritter?
100
In Ritter's experiment, the most dramatic oxidation reaction occurred in the region just beyond the visible ____ end of the spectrum.
What is violet?
200
Scientists divided the UV into 3 rays.
What are UVA, UVB, and UVC rays?
200
Causes tanning, but does not cause sunburn.
What is UVA rays?
200
UV rays can activate the chemical process of making vitamin _.
What is Vitamin D?
200
Ritter used __ to split ordinary white light into a rainbow, or spectrum.
What is a prism?
200
___ oxidizes when it's exposed to light.
What is chemical silver chloride?
300
UV are invisible to human eyes. But some ____ can see them.
What are insects?
300
Destroys nucleic acid within cells and destroys cell's DNA.
What is UVC rays?
300
UVC rays can kill pathogens such as:
What is bacteria/viruses/fungi?
300
Ritter believed that radiation existed beyond the ___ end of the visible spectrum?
What is violet?
300
When did Ritter perform his experiment of UV rays?
What is 1801?
400
DNA absorbs UV_ radiation.
What is UVB ray?
400
The most common effect that exposure to UV rays causes.
What is sunburn?
400
Ultraviolet light can ____ air, water, and hard surfaces.
What is sterilization?
400
Chemical silver chloride is more reactive to violet light than to ___ red light.
What is red?
400
Ritter was born in ____
What is Germany?
500
The wavelength of the UV is between 400_ and 10_.
What is nano-meters?
500
Sunburn can ultimately cause ____.
What is skin cancer?
500
Artificially generated ultraviolet light is used in what settings?
What is medical/industrial settings?
500
Ritter also discovered ____.
What is dry cell?
500
We are lucky that the UVC ray does not surpass the ___.
What is the ozone layer?