Physics
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What is the difference between mass and density?
I keep mixing the two up in problems.
PhysicsWhy does salt melt ice on the road?
Our street was salted last winter and the ice went away even though it stayed cold.
PhysicsWhy does ice float on water instead of sinking?
In class we learned that solids are denser than liquids, so they sink. But ice is the solid form of water and it floats. Our teacher said it is about the structure of the molecules but I did not understand the part about the hexagonal shape. Can someone explain it simply?
PhysicsWhy does ice float on water instead of sinking?
In class we learned that solids are denser than liquids, so they sink. But ice is the solid form of water and it floats. Our teacher said it is about the structure of the molecules but I did not understand the part about the hexagonal shape. Can someone explain it simply?
Physics
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