It filters the light through
Colored plastic or glass that are used to modify the color of light passing through are called color filters because they are specifically designed to selectively absorb certain wavelengths of light and allow others to pass through, effectively changing the color of the light. They are commonly used in photography and theatrical lighting to create different visual effects.
You ask for a glass, and if they hand you a plastic cup you usually do not drink out of it.
Acrylic plastic is from a family synthetic, or man-made, plastic materials containg some acrylic acid. Acrylic plastic also called acrylic glass is a clear alternative to sheet glass.
It is called a microscope slide.
blue filters are made of plastic with a special type of chemical
The plastic clear cover on a watch is called a protective film. It is used to keep the glass face plate from getting scratches or getting damaged or cracked. ADDED: The first answer is referring to the protective film applied at the factory which protects the watchface "glass faceplate" lens. The name of the glass faceplate is called the "BEZEL." ANOTHER ANSWER: The glass that covers the watch face is also called a crystal.
it filters out bacteria from the water
An Aquarium is a glass or plastic tub that is filled with water. An aquarium supports some organism whether it is a plant or a fish. They almost always have filters and they give you a look at the ocean from inside your house.
Glass would be healthier
plastic glass mental paper
That piece of colored plastic is called a filter or a color filter. It selectively transmits certain wavelengths of light while blocking others.
An advantage that glass and plastic containers have over aluminum cans is that glass and plastic containers, after used, can be washed, disinfected, and used again. Also now both glass and plastic can also be recycled.