Text: three phases of matter
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Matter exists in three phases: solids, liquids, and gases. Solids have a fixed shape and volume, with molecules packed closely together, as seen in pencil. Liquids have a fixed volume but take the shape of their container, like water. Gases easily change their shape and volume, with particles spreading apart, such as air in a balloon. The key difference between the three phases is the arrangement of molecules - closely packed in solids, somewhat free in liquids, and freely moving in gases.
Text: three phases of matter
- 1. Three Phases of Matter Grade 5 Guide Question: What is Solid, Liquid, Gas? Give examples each of the phases of matter. Differentiate the arrangement of molecules of the three phases of matter. Matter is anything that has mass and takes up space. Matter is composed of tiny building blockscalled molecules. Molecules arefurthercomposedof the tiniest parts of matter called atoms. A solid is a kind of matter that has a fixed shape and a fixed volume. Your pencil is a solid. The shape and volume of your pencil will not change if you move the pencil from place to place. The fixed, closely packed arrangement of particles causesa solid to havea definite shapeand volume.Solid possessthecharacteristics of being hard and tough. The hardness of solid is due to the arrangement of its molecules. The molecules of a solid ice are close to each other, leaving no spacein between. This true to all solid materials. A liquid is a kind of matter that has a fixed volume. However, the shapeof a liquid changes with the shape of its container. A liquid is a kind of matter that has a fixed volume. However, the shape of a liquid changes with the shape of its container. A gas is a kind of matter that easily changes volume and shape. Air is a gas. When you blow air into a balloon, the air takes the shapeof the balloon. When you let the air out of the balloon, the particles spread out into the room. Gas particles can move around freely. Gas particles can either spread apart or be squeezed together. Gas permits materials to pass through it readily because of its spacious molecular arrangement. The oxygen that all living things breathe, the carbon dioxide that your lungs exhale, and even the helium gas that enables a balloon to float are all examples of gases.