Why does a piece of charcoal …
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Meghna Thapar 5 years, 10 months ago
Whether an object floats or sinks in water is determined by the ratio of its weight compared to its volume. If an object of a certain volume weighs more than an equal volume of water, it sinks because the water can’t hold it up. If an object weighs less than an equal volume of water, it floats because the water can support its weight.
This ratio between weight and volume is called density. An object that is less dense than water can be held up by water, and so it floats. An object that is more dense than water will sink. A piece of charcoal has less density than water so it floats whereas a piece of wood has more density than water so it sinks.
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