does it sink or float ?
825037
For the cork to sink it must raise the water level. Since it must raise the water against the force of the centrifuge - pushing harder on both just doesn't do the job (of sinking the cork).
895549
suspension and floating
108792
They are made of wood, which floats because it has a lower density than water.  If you made a ship out of solid gold, it would sink, for example.
971927
Sure, take a plastic bottle, like an empty coke bottle.  Punch a couple of holes in it, and put in a little piece of cork or styrofoam.  Fill it with real salty water (you'll need a lot of salt!).  Since salt water is heavier than pure water, it will sink, but after awhile the salt water will run out of the holes and fresh water will replace it, and the cork or styrofoam will make it float.  You'll have to experiment with the size of the piece of styrofoam, it needs to be small so it barely makes the bottle float.\n\nGood luck!\n\nAnd make sure your floating piece isn't going to soak up water, or of course it won't work.
902905
Ok. this is simple. u need to know about buyoancy, like how air is lighter than water. all you really got do is put some small weights (ex. paper clips, rocks, etc) in the bottle. have it so that it will just barely float. then cut a hole to the side and insert the end of a tube in it. make sure it is water tight. then place it in a tub. it shold float, when you suck on the end of the tube, it should take some of the air out making it less buoyant, and therefore it will sink. there are also many other ways to do this that will make it function more like a real submarine like putting the bottle with weights inside and somehow add pressure to the the outside of the tube to compact the air inside the bottle, causing it to sink. good luck on your project
965238
grapes, lemons, limes, orange slices, apples will float\n\nolives,tomatoes,zuchinni,water melon , squash will sink
903478
fat content\n\n\nthe fattier it is, the more it'll float
39301
Think of it this way:  If an object weighs more than it would if it was made of water, it will sink.  If an object weighs less that it would if it was made of water it will float.\n\nA coin is made of solid metal which makes it denser than water, therefore heavier.  It will sink.  A ship is made of metal also, but NOT solid metal.  It also consists of other materials but mainly air (inside the ship).  This means it's lighter than water, which is why it will float.
29645
It probably is evaporating from the top. The bubbles on bottom are just more visible.
648278
a tab floats and stops the water
1165265
its all to do with weight displacement and the volume of water
823437
If you take a balloon under water, and go further and further, the air becomes more dense...due to PRESSURE.   The way a submarine dives is completely different then denser/less dense ....it's that they are mostly filled with air...so they should float...but they have enough weight that they sink too,  it's almost a balance, but they have tanks that they let fill with water to sink, or push air in (and water out) to get lighter and float.
257654
Say the anchor weighs 15 pounds in air and displaces 2 pounds of water.\nBefore the drop, the boat displaces its weight plus the 15 lb weight in air of the anchor. This is the maximum displacement situation, so the water is at maximum height.\nAfter the drop, if the anchor hits bottom, the boat displaces its weight only and the anchor displaces 2 lb of water, the minimum displacement situation, so the water is at minimum height.\nAfter the drop, if the anchor doesn't reach the bottom, the boat displaces its weight plus the 13 lb weight in water of the anchor. The anchor displaces 2 lb water. The total displacement is the same as the maximum displacement situation, so the water is at maximum height.
959807
You must show not tell. Take a bowl filled to the top with water and put it on a plate to catch overflow. The put objects in the water and compare the overflow for sinking and floating objects of the same size. If you have a scale weigh the objects and the water if not just hold them and judge weight. Then explain density.
908737
compared to what?\nIt would be buoyant compared to sea water, which is heavier due to the high number of minerals dissolved in the water.\nIt would not be buoyant compared to distilled water, which would be lighter because it has no minerals dissolved in it.
943048
Whenever the mass of an object is less than the mass of the liquid it displaces, it will float.  That's why a hunk of steel won't float, but a ship made of steel, enclosing lots of unoccupied space, will float.\n\nAs for the ice cream, its made up of lots of fat molecules whipped into a semi-solid.  Its mass is less than the mass of the root beer it displaces...therefore it floats
19622
Depending on the volume of compressible air within, the weight and density of the ball material, the density of the water and the pressure on the ball, it will first keep wanting to go up until it is compressed so far that there is an equilibrium, i.e. nothing happens. When the pressure increases further, the ball might become heavier than the water and sink down - depending on the density of the material and its compressibility.