sentence: Temperature has an effect on density.
sentences_after: When the temperature of a substance increases,the density decreases because the atoms are moving all around the place having less mater in one space. When the temperature of a substance of a substance decreases, the density increases because the atoms move slower making the atoms stay in one place. Many substances follow this rule, but there are exceptions. Water is one such exception. When most substances freeze, the substance is more dense.
concept_name: temperature
headings: Density
categories: Measurement Matter