One of the more common lessons taught in schools to younger students is the idea of solids, liquids, and gas. A solid can be defined as a substance or object that is solid rather than liquid or fluid. A liquid is defined as having a consistency like that of water or oil, i.e., flowing freely but of constant volume. A gas is defined as an airlike fluid substance which expands freely to fill any space available, irrespective of its quantity. When teaching about solids, liquids, and gases we need to make sure that we are teaching these concepts properly but also that we keep the students engaged in the lesson too! This website is a good source to support the material in a lesson about these concepts. It has very good visuals to support and show the students learned. It is also interactive, which is always a good part to a lesson. Check it out here: http://www.sciencekids.co.nz/gamesactivities/gases.html
Solids and Liquids and Gases oh my!