Solids, liquids, and gases are distinguished by their physical properties. Solids maintain a fixed shape and volume, as seen with frozen fruit that keeps its shape when frozen. Liquids take the shape of their container but maintain a constant volume, like water in a fish bowl. Gases fill their container completely and can be easily compressed into a smaller volume, as with helium in a balloon.

1. Solids, Liquids and Gases

2. FROZEN SOLIDS

3. Fruit frozen in the solid. The fruit is unable to move.

4. Pouring liquid into the popsicle model. The liquid takes the shape of the model, but when frozen keeps the shape.

6. Popsicle keeps its shape as long as frozen SOLID, but when it melts to become a LIQUID it takes the shape of the glass.

7. Liquids take the shape of their container.

19. Fish can swim through the water. The cat can put his paw through the water and walk through the air.

20. The water in the fish bowl will take the shape of the fish bowl, however the fish does not change its shape in a different bowl.

21. The cat can also swim through the liquid water

24. The helium gas takes the shape of the balloon

51. So we must have pushed the particles closer together. The particles must have been far apart . Since we cannot push the particles any closer, the particles must already be as close as they can get Particles must be as close as they can get. We cannot push them any closer SPACING OF PARTICLES So the particles Can be compressed We could squish it and make it smaller Cannot be compressed Water in the syringe could not push it down Cannot be compressed Volume stays the same Observation- compression Particles move to new spots to take the collection takes the shape of the container. Particles must be free to move to a new location . They can move to new spot in new shape. Particles must stay in fixed positions (same place or locked in place) Cannot move to a new spot FREEDOM OF MOVEMENT So the particles Takes shape of container Ex. Balloons gas takes shape of balloon Takes shape of container Ex. Water in fish bowl Round or head-shaped Can put hand through Keep their shape Cannot put hand through Ex. Choc. bunny, ice sculptures, popsicles, fish observation Gas Liquid Solid