Particle model will
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This document discusses the particle model and the states of matter. It explains that all objects are made of particles that behave differently depending on whether the substance is a solid, liquid, or gas. In solids, particles vibrate in place; in liquids, particles can move around each other; and in gases, particles move freely at high speeds. It also describes how materials change with temperature - solids expand when heated and contract when cooled, liquids expand more than solids with rising temperature, and gases expand much more than liquids under the same temperature change.
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Particle model will
- 1. Particle Model Made by: William
- 2. Every object have particles. Like example: table, book, oil, milk, oxygen, helium, others
- 3. Particle in three states of matter: The particle in solid are: particles vibrate left and right, front and back. The particle in liquid are: particles have some freedom and can move around each other. The particle in gas are: particles that move freely and at high speed.
- 4. How material change with temperature Change in solid: When a solid is heated it expands and when it cools it contracts. For example, when it is cool a metal bar fits inside a metal gauge. Its end will also fit through the hole in the gauge. When the bar has been heated it will no longer fit in the gauge or in the hole. When the bar cools down it will fit in the gauge and hole again.
- 5. Changes in liquids when it is heated: When liquid are heated they generally expand much more than solid for a given temperature rise. They also contract to their original volume when they are cooled. When the water gets hot it expands and rises up the glass tube. When the water is allowed to cool the level of water in the tube falls.
- 6. Changes in gases: like most liquids and solid, gases expand when they are heated and contract when they are cooled. If a gas and a liquid undergo the same temperature rise the gas expands about ten times more than the liquid.
- 7. Thank you for your attention!!!