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Matter

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QuestionAnswer
Matter Matter: Anything that has mass and takes up space.
Chemistry Chemistry: The study of matter and how matter changes.
Substance Substance: A single kind of matter that is pure, meaning it always has a specific make-up, or composition.
Physical Property Physical property: A characteristic of a substance that can be observed without changing it into another substance.
Chemical Property Chemical Property: A characteristic of a substance that describes its ability to change into different substances.
Atom Atom: the basic particle that all elements are made.
Molecules Molecules: A group of two or more atoms held together by a chemical bond
Chemical Bond Chemical bond: When atoms combine from more than one element’s.
Compound Compound: A substance made of 2 or more elements that are combined in a set ratio (Chemical formula: H20)
Chemical Formula Chemical Formula: Shows the elements that make the compound and the ratio or amount of atoms of each element.
Mixture Mixture: made of 2 or more substances that are together in the same place, but their atoms have not chemically bonded.
Heterogeneous Mixture Heterogeneous mixture: When a mixture is not the same throughout
Homogenous Mixture Homogenous mixture: When the mixture is the same throughout.
Weight Weight: The measure of the force of gravity on you.
Mass Mass: The amount of matter in the object.
SI SI: International unit of measure that scientists use.
Volume Volume: The amount of space that matter occupies.
Density Density: How tightly packed the matter is in an object, compares the objects mass to its volume. Density formula D: M/V
Physical Change Physical Change: It alters the form or appearance of matter but does not turn any substance in the matter into a different substance. If a substance undergoes a physical change is still the same substance after the change.
Chemical Change Chemical Change: A change in matter that produces one or more new substances, also called a chemical reaction.
Law of Conservation of Mass Law of Conservation of Mass: Matter is not created or destroyed in any physical or chemical change only changed into something different.
Thermal Energy Thermal Energy: The total energy of the motion of all of the particles (atoms/molecules) in an object. (Heat Energy)
Endothermic Change Endothermic Change: A change in which energy is absorbed.
Exothermic Change Exothermic Change: A change in which energy is released.
Chemical Energy Chemical Energy: The energy stored in the chemical bonds between atoms is a form of energy.
Created by: user-1769298
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