Markal MRK-96801C Valve Action Paint Marker Yellow

Black - A colour which does not emit any colour of the spectrum. Black absorbs all frequencies of the spectrum.

Steel - An alloy made predominately of Iron combined with <2% carbon

Ink - A liquid containing pigments and dyes

Plastic - A generic term for a synthetic product used in the manufacture of products

White - A colour combining all colours

Glass - A solid, typically transparent. Brittle and used in windows. The first patent granted in the UK was for Glass.

Yellow - A primary colour. The sun is often described as yellow

rubber - Synthetic rubber is any artificial elastomer, usually a polymer, and is used as a substitute for natural rubber.

rubber - Natural rubber is an elastomer derived from the latex containing sap of some plants.

iron - An electrical deviced used for removing creases from fabrics

iron - A chemical element (FE). The most common element on earth

Colour - The categorised spectrum of light visable to humans

Resistant - Something that can repel against something.

Valve - An opening and closing to control the movement of fluid through pipes.

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