Everything that has mass is matter. In normal everyday life we come across matter in three states, solid, liquid and gas. They have a fixed shape and cannot flow The particles cannot move from ...

Although the three states of matter are solid, liquid, and gas, not all substances seem to fit perfectly into one of these groups. Take a look at the substance below and see if you can decide whether ...

If enough energy is added, the solid melts to a liquid and the liquid evaporates to a gas. As energy is removed, the motion of the molecules decreases and the attractions begin to overcome the motion ...

Curious Kids is a series for children of all ages ... You probably learned in school that there are three states of matter: solid, liquid and gas. Think ice cube, a puddle of water and fog.