Solids, liquids and gases. In a solid like this brick ... Scientists use models to show things that are too small to see, like atoms or cells. Sometimes they use models of things which are ...

Atoms and molecules make up all of the different substances, including solids, liquids, and gases that are all around us. Models can be used to represent atoms and these models can be rearranged to ...

Structure of solids and liquids is the study of the physical properties of matter in which there is a non-negligible interaction between the constituent atoms or molecules. While the atoms or ...

Students explore the attractions and motion of atoms and molecules as they experiment with and observe the heating and cooling of a solid, liquid, and gas.