Solids, Liquids, and Gasses
Published on Dec 28, 2015
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PRESENTATION OUTLINE
Science Unit 2
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Solids
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Ice cubes are examples of solids. They are hard, and have mass. If you set them at room temperature, the ice will change to a liquid, water. The shape and size of the ice cube will change, as well as the sheen, and translucency as the ice melts. When the ice first comes out of the freezer, it will be foggy so you can't see through it; at this time, the color is a silvery white. The texture will start out hard, and when it melts, it will become a squishy liquid. The volume will never change.
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In liquids, the molecules are moving more freely than in solids, but less freely than in gasses.
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After ice cubes melt, the old solid turns into a liquid. When the ice melts fully, the water will begin to evaporate and turn into a gas. The mass of the original ice cube will never change. The viscosity of water is fast, or thin. When water evaporates under something absorbent, the volume of the water won't change, and neither will the mass.
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Gasses
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The molecules in gasses expand, and almost instantly are invisible to the naked eye. When water evaporates, it becomes a gas. The mass of this mass of the original water won't change when it turns into a gas.
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Kinetic molecular theory is the idea that molecules move at different rates in different states of matter. Keep in mid that heat energy transfers to kinetic energy. Cold energy is not involved.
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