Density.

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Presentation transcript:

Density

Density Density The amount of matter in a given amount of space The formula for density D= mass divided by volume D=M/V M D V

Importance of density Density is a physical property Every substance has a specific density at a given temperature The density is constant regardless of the amount of the substance A glass of water has the same density as a swimming pool filled with water.

Density and Gravity When placed together, substances will arrange themselves based upon density Substances with higher densities on the bottom Substances with lower densities on the top Why HDL is better than LDL

The density of water Water is unique substance Water has a density of 1g/ml Solid water has a density of .9167g/ml That is why ice floats The density of sea water is 1.025g/ml

How things float The percent of an object that is above water is base upon its density A block with a density of .6g/ml will have 40% of the block above the water line. Remember the density of water is 1g/ml 1g/ml-.6gml = .4

Why icebergs are so dangerous

Density column The liquids do not mix together The liquids settle out based upon their densities https://www.youtube.com/watch?v=-CDkJuo_LYs

Density and the Earth

Density and Weather

Density Summary Density – the amount of matter in a given space Formula – D= M/V Substances will layer based upon densities The amount floating above the surface is base upon the relative densities of two substances