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Intro To ES
Lee-pnhs-intro to I.S.H vocab
Vocabulary | Definitions |
---|---|
What is a pure substance? Give an example. | a pure substance is matter that always has exactly the same composition ex. an element or compound |
What is an element? Give an example. | an element is a substance that cannot be broken into simpler substances ex. hydrogen, helium |
What is an atom? Give an example. | an atom is the smallest particle of an element ex. |
What is a compound? Give an example. | a compoud is a substance that is made from two or more simpler substances and can be broken down into those simpler substances ex. steel, salad |
what is a heterogeneous mixture? Give an example. | a type of mixture in which the parts of the mixture are noticeably different from one another ex. salad, trail mix |
What is a homogeneous mixture? Give an example. | a type of mixture in which the substances are so evenly distributed that it is difficult to distinguish one substance from another ex. steel |
What is a solution? Give an example. | a solution is a mixture that forms when substances dissolve and form a homogeneous mixture ex. salt water, sugar water |
What is a suspension? Give an example. | a suspenstion is a heterogeneous mixture that separates into layers over time ex. |
What is a colloid? Give an example. | a colloid is a mixture that contains some particle that are intermediate in size between the small particles in a solution and the larger particles ex. |