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  2. Boulder - Wikipedia

    en.wikipedia.org/wiki/Boulder

    In geology, a boulder (or rarely bowlder) [1] is a rock fragment with size greater than 25.6 cm (10.1 in) in diameter. [2] Smaller pieces are called cobbles and pebbles . While a boulder may be small enough to move or roll manually, others are extremely massive. [ 3 ]

  3. Rock (geology) - Wikipedia

    en.wikipedia.org/wiki/Rock_(geology)

    Rocks are classified according to characteristics such as mineral and chemical composition, ... Boulder – Natural rock fragment larger than 10 inches;

  4. Grain size - Wikipedia

    en.wikipedia.org/wiki/Grain_size

    Boulder Bo 200–630 7.8740–24.803 Cobble Co 63–200 2.4803–7.8740 Coarse soil Gravel Coarse gravel cGr 20–63 0.78740–2.4803 Medium gravel mGr 6.3–20

  5. Bouldering - Wikipedia

    en.wikipedia.org/wiki/Bouldering

    Bouldering is a form of rock climbing that is performed on small rock formations or artificial rock walls without the use of ropes or harnesses.While bouldering can be done without any equipment, most climbers use climbing shoes to help secure footholds, chalk to keep their hands dry and to provide a firmer grip, and bouldering mats to prevent injuries from falls.

  6. Unified Soil Classification System - Wikipedia

    en.wikipedia.org/wiki/Unified_Soil...

    The Unified Soil Classification System (USCS) is a soil classification system used in engineering and geology to describe the texture and grain size of a soil.The classification system can be applied to most unconsolidated materials, and is represented by a two-letter symbol.

  7. I Tried 10 Brands of American Cheese Singles, and These Were ...

    www.aol.com/finance/tried-10-brands-american...

    5. Borden American Cheese Singles. The truth is, so many of these cheeses taste identical. Borden and Harris Teeter are really similar, both lacking any distinct flavors that make them unique or ...

  8. Joan Collins, 91, Shows Off Her ‘Amazing Legs’ in New Photo ...

    www.aol.com/lifestyle/joan-collins-91-shows-off...

    Joan Collins has legs for days!. After the Dynasty actress, 91, shared a carousel of photos from her and husband Percy Gibson's recent vacation in Cancun, Mexico, via Instagram, fans couldn't help ...

  9. Gravel - Wikipedia

    en.wikipedia.org/wiki/Gravel

    Gravel is classified by particle size range and includes size classes from granule- to boulder-sized fragments. In the Udden-Wentworth scale gravel is categorized into granular gravel (2–4 mm or 0.079–0.157 in) and pebble gravel (4–64 mm or 0.2–2.5 in). ISO 14688 grades gravels as fine, medium, and coarse, with ranges 2–6.3 mm (0.079 ...