All substances are made from particles, and the forces between the particles are different in solids, liquids and gases. The arrangement, movement and spacing of the particles explain many of the ...

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 ...

Mixing the movement of fluids and solids to enhance a process ... of which the most frequently occurring are Interaction of three phases gases, liquids, and solids-may also occur, as in the ...

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.