in the new environment of academic learning we need to address both content standards and english language development standards and design language objectives for content based lessons in order to bring about a balance of language literacy and content in instruction
The physical properties of molecular substances Molecules are made of fixed numbers of atoms joined together by covalent bonds, and can range from the very small (even down to single atoms, as in the noble gases) to the very large (as in polymers, proteins or even DNA).olecular substances tend to be gases, liquids or low melting point solids, because the intermolecular forces of attraction are comparatively weak. You don't have to break any covalent bonds in order to melt or boil a molecular substance.
The smallest particle or piece of a compound is called a molecule. It is the basic unit of a substance and carries basically all of a compound's chemical properties. It cannot â¦ be further reduced and still retain the compound's chemical identity.  An easy example is water. Physical Properties of Chemicals Chemistry is the study of chemical properties and reactions. 2  Every chemical has a set of properties that distinguishes it from other chemicals and makes it unique.