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Matter

All That Matter

All That Matter
Reading Level
     edHelper's suggested reading level:   high interest, readability grades 5 to 6
     Flesch-Kincaid grade level:   5.46

Vocabulary
     challenging words:    atomic, valence, nucleus, hydrogen, conservation, element, atom, volume, electrical, microscope, substance, vapor, outer, heated, negative, identify
     content words:    Periodic Table

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All That Matter
By Patti Hutchison 		  
1     What is matter? Matter is anything that has volume and mass. All of the things you see around you are made of matter. There is even one thing you can't see that is made of matter- air. Matter can be broken down into smaller substances called elements.
 
2     Elements are matter that cannot be broken down into a simpler substance. For example, silver can be shaped into a coin or a ring, but it is still silver. There are ninety-two natural elements on earth and in space. There have been some elements created by scientists.
 
3     All elements are different. But they are all made up of the same particles. An atom is the smallest part of an element. You can only see an atom with a special microscope. Atoms are made of even smaller particles.
 
4     At the center of an atom is the nucleus. The nucleus contains protons and neutrons. Protons have a positive charge. Neutrons have no electrical charge. They are neutral.

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