However, the liquid is quickly heated and starts to expand. It expands more than the solid glass and so the water level rises back to A and then up to, and beyond, C. Molecules within gases are ...

Heating a substance makes its atoms and molecules move faster. This happens whether the substance is a solid, a liquid, or a gas. It’s not easy to see it happen in a solid but let’s try it for a ...

to ice (solid). Explain that another change in state is when liquid water cools enough and freezes to form ice. Instead of changing from a liquid to a gas, like in evaporation, the water molecules ...

Microporous materials that adsorb volatile molecules from the gas phase ... we encounter three states of matter: solid, liquid and gas. A solid melts to a liquid at a well-defined temperature ...

These molecules are so small that you can ... of any container it is in and has no fixed shape. But unlike liquids and solids ...