Floating is when something stays on top of the surface of the water, like a boat. Sinking is when something drops beneath the surface of the water and falls to the bottom, like a stone.
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来自MSNFloating - why is it important?We all have the ability to swim. However, an important factor to survival is being able to float, and in order to float we ...
Less dense solutions and objects float on top of solutions of greater density ... Make observations. 3. Pour the same amount of water slowly down the inside of the bottle. Record your observations ...
The city is designed to float on a cluster of interconnected platforms that collectively span 15.5 acres and can produce their own energy, water ... of the buildings on top," Daniel Sundlin ...
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