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States of Matter

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States of Matter - Page Text Content

S: NS1010 - Physical Science for Teachers

BC: Physical Science 2012 Dave Magruder

FC: States of Matter by Marie Montoya

1: There are three basic states of matter: solid, liquid, and gas. Everything on Earth is made up of microscopic particles known as molecules, ions, and atoms. The speed and density of these particles determine which state of matter an object is!

2: Solid | A solid is anything that holds a particular size and shape. You can hold and see solids very easily. An apple, a block of wood, and a penny are all examples of solids. The particles in a solid are tightly packed and don't make a lot of movements because they are so close together. They like each other so much they want to be as close as possible.

5: Liquid | In a liquid, the attractions between particles are not as strong as in solids. They are randomly arranged and slightly further apart. A liquid is anything that has size or volume, but does not have a shape. Liquids must be contained in a cup, bottle, or receptacle in order to have a shape. Milk, water, and juice are liquids. When you pour milk into a glass, it takes the shape of the glass. If you spill the glass of milk on the floor, it will spread quickly as it takes the shape of the floor. The particles in liquids move around and past each other much more freely.

6: Gas | Gases are hard to identify because they have no color or shape. Take a deep breath and feel your lungs get bigger. Your lungs are filling up with air, and air is a combination of many gases. It has no shape or size even though it's all around us! The particles in a gas move freely at high speeds. There is a lot of free space in between the particles, and they take the shape of any container.

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  • By: Marie M.
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  • Title: States of Matter
  • Physical Science!
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  • Published: about 6 years ago