Surface tension, place a drop of detergent on the water and it breaks the meniscus allowing the water to flow away. Also the cohesion makes the water molecules stay together. It is not because of the ridge.
You cant't figure this out using copper pennies. Pennies are not 100% copper.
480 pennies
No, water is neutral. It has no acid in it whatsoever.
Roughly $320 worth, that's 32,000 pennies.
The pennies will corode.
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15,285
i tink it would take about maybe estimate of 10,000 pennies i tink it would take about maybe estimate of 10,000 pennies
The reason the pennies sink in water is because of an idea called density. The pennies have more density than the water, and so the pennies sink. Anything with more density than water will sink in water, but other objects that have less density than water will float.
Approximately 7,500 pennies could fit in a three gallon jug.
Measuring the volume of pennies by their displacement requires that only water actually displaced by the pennies is measured. Unless the water was at the very top of the cylinder both before and after the pennies are added, splashed water will make the measurement invalid.Because surface tension forms a curved surface at the top of the water, it is advisable to have the cylinder only partly filled, and measure the level at the same part of the curved water surface both before and after the pennies are added. This will improve the accuracy of measurement.
soap and water