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A SAP's ability to absorb water depends on the ionic concentration of the aqueous solution. In deionized and distilled water, a SAP may absorb 300 times its weight [4] (from 30 to 60 times its own volume) and can become up to 99.9% liquid, and when put into a 0.9% saline solution the absorbency drops to approximately 50 times its weight.
Scoria differs from pumice, another vesicular volcanic rock, in having larger vesicles and thicker vesicle walls, and hence is denser.The difference is probably the result of lower magma viscosity, allowing rapid volatile diffusion, bubble growth, coalescence, and bursting.
Chocolate lava cake smothered in chocolate sauce. Molten chocolate cakes characteristically contain five ingredients: butter, eggs, sugar, chocolate, and flour. [3] The butter and chocolate are melted together, while the eggs are either whisked with the sugar to form a thick paste, producing a denser pastry, or separated, with the white whipped into a meringue to provide more lift and a ...
The meshing of many spicules serves as the sponge's skeleton and thus it provides structural support and potentially defense against predators. [1] Sponge spicules are made of calcium carbonate or silica. Large spicules visible to the naked eye are referred to as megascleres or macroscleres, while smaller, microscopic ones are termed microscleres.
Vegetable fiber sponge: wood fiber sponge combined with scouring pad. Animal fiber sponge: A Greek natural sponge. A sponge (/ ˈ s p ʌ n dʒ / SPUNJ) is a cleaning aid made of soft, porous material. Typically used for cleaning impervious surfaces, sponges are especially good at absorbing water and water-based solutions.
The term sponge derives from the Ancient Greek word σπόγγος spóngos. [9] The scientific name Porifera is a neuter plural of the Modern Latin term porifer, which comes from the roots porus meaning "pore, opening", and -fer meaning "bearing or carrying".
All three sponge body plans (asconoid, syconoid, and leuconoid) can be found within the class Calcarea. Typically, calcareous sponges are small, measuring less than 10 cm (3.9 in) in height, and drab in colour. However, a few brightly coloured species are also known.
They are porous in structure, pores being about 1–2 nanometers in size, and can therefore be targeted to absorb small amounts of matter or toxin. [2] Nanosponges are often used in medicine as targeted drug delivery systems, detoxification methods, or as a way of damage control after an injury. [ 3 ]