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Abrasive facts for kids

Kids Encyclopedia Facts

An abrasive is something that is very hard. It is also rough. It is used to rub things so they get smooth. When abrasives are glued to paper, it makes sandpaper. Aluminium oxide is a common abrasive. Abrasives are used to make the ends of wood pieces smooth and to smooth the cut ends of metal. The hardest natural abrasive is diamond. Diamond is commonly used in saw blades designed to cut tile or stone.

Images for kids

  • Differences in the size of sand

    Grit size ranging from 2 mm (the large grain) (about F 10 using FEPA standards) to about 40 micrometres (about F 240 or P 360).

  • Diamond powder paste

    Diamond powder paste

  • Grinding Wheels

    Assorted grinding wheels as examples of bonded abrasives.

  • Noe schleifstein

    A grinding wheel with a reservoir to hold water as a lubricant and coolant.

  • Schuurpapier2

    A German Klingspor sandpaper showing its backing and FEPA grit size.

  • Abrasiveness RDA

    Here the abrasiveness of toothpaste is detailed by its Relative Dentin Abrasivity (RDA)

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Abrasive Facts for Kids. Kiddle Encyclopedia.