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# Definition of Density Density is the mass contained in a given volume of a substance. * **Symbol:** ρ (rho) * **Units:** * Solids: g/cm³ * Liquids: g/ml * Gases: g/L **Example:** According to the table on page 12 of OneNote, 1 cm³ of iron has a mass of 7.87 g. # Buoyancy...

# Definition of Density Density is the mass contained in a given volume of a substance. * **Symbol:** ρ (rho) * **Units:** * Solids: g/cm³ * Liquids: g/ml * Gases: g/L **Example:** According to the table on page 12 of OneNote, 1 cm³ of iron has a mass of 7.87 g. # Buoyancy Buoyancy is the ability of a liquid or gas to make objects float. The substance with the lower density (smaller mass per unit volume) will float on the substance with higher density. # Properties of Matter * **Property:** A characteristic that helps to describe a substance (e.g., state of matter, color, volume, mass, shape, etc.) * **Characteristic Property:** A unique characteristic of a substance that helps to identify it (e.g., fingerprint, DNA, melting point, etc.) **Note:** Density is a characteristic property of matter.