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physical change

physical change. A change in which a substance remains the same substance, such as carving, cutting, and shredding. separate. chemical change. A change that creates a new substance. A change in which a substance or two becomes a new substance or two. mixture.

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physical change

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  1. physical change A change in which a substance remains the same substance, such as carving, cutting, and shredding. separate

  2. chemical change A change that creates a new substance. A change in which a substance or two becomes a new substance or two. mixture Two or more substances that are combined without being changed.

  3. Chemical reaction A change that results in a new substance, chemically different from the original substance. solution It is an even mixing of particles that results when a substance is called a solute dissolves in another substance called a solvent. (salt water

  4. matter Anything that takes up space and has mass. It is made up of tiny particles called atoms. dissolving To become absorbed in a liquid solution, or make a solid do this.

  5. substance A substance made up of two or more kinds of atoms that are chemically combined. physical properties smell color freezing point boiling point It is a trait that describes a substance by itself.

  6. volume The size of a three-dimensional space enclosed within or occupied by an object. chemical properties A property that involves the ability of a substance to react with other materials to form new substances. pH reactivity with water

  7. States of Matter gas solid liquid mass Mass is a measure of how much material is in an object.

  8. weight The strength of the gravitational pull on the object . gravity Gravity is a force pulling together all matter (which is anything you can physically touch).

  9. matter Matter is commonly defined as being anything that has mass and that takes up space. solvent A solvent is a liquid or gas that dissolves a solid, liquid, or gaseous solute, resulting in a solution.

  10. solute A solute is dissolved in another substance, known as a solvent. atom It is the smallest possible particle of a substance.

  11. molecule Two or more atoms joined together. element It is a substance that made up of just one kind of atom.

  12. solid The atoms or molecules that compose the solid are packed closely together. molecules liquid molecules A liquid is a fluid that has the particles loose and can freely form a distinct surface at the boundaries of its bulk material.

  13. gas molecules A collection of particles (molecules, atoms, ions, electrons, etc.) without a definite shape or volume that are in more or less random motion. properties It is a trait that describes a substance by itself. shape state size color

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