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Paper clips have a density greater than the density of water.
because paper clips have the plastic bit around them and have air so they float on water. The effect you are talking about is known as surface tension. this has the effect of forming an elastic skin over the surface of liquids that holds things on the surface if they are light. many insects are able to move around on the surface of the water because of this. Take a glas of water and you can lay a needle or pin or paper clip on top of the water. you can ruin the surface tension by just putting a drop of detergent in the glass as well.
Chair is not made of paper because if a glass of water spills on it, you cannot sit on the chair anymore.
No, paper will not keep water cold for the longest time. A metal cup will keep water the same temperature for the longest time. I know this because I did a science experiment about this but instead of cold water I used hot, which won't really make a difference. The next would be glass then paper.
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It will be very depending on the glass size. You may float 100 paper clips on the sink.
Paper clips are made from low carbon steel then plated with solution to prevent rusting. If you want to test this sand off the side of a clip and hang half way it in a glass of water or coke and you will see rust in a short time
Freeze it first. Alternatively, fill it with oil so that when you knock it over it won't be water that you spill.
you drink,sip or spill it.but mostly drink it
When filling a cup/glass with full water the card/lid will not stay up.
Paper clips have a density greater than the density of water.
Paper clips have a density greater than the density of water.
water vs paperclips
Because they are heavier than water and have no air in them
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