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Chapter 3   Student Reading If you hold a solid piece of lead or iron in your hand, it feels heavy for its size. If you ho...
But if an object has a small mass compared to its volume it has a lower density. This is like an apple or a piece of wood ...
Therefore more can fit into the same volume and each one has more mass. This makes copper more dense than aluminum. A samp...
When you put an object on a scale, of course the scale    feels    the effect of gravity but the scale is programmed or ca...
Because of the size, mass, and arrangement of its molecules, the density of wood is more similar to plastic than to copper...
The density of a substance is the same no matter what the size of the sample. This means that a big piece of wax, for exam...
If you put a volume of clay and an equal volume of water on opposite ends of a balance, the balance will show that the cla...
Why do heavy boats float   Why can boats float when they are made out of material that is more dense than water  An object...