Flow of matter

Term Definition Example
Element Pure substance with one type of particle. Gold, iron, aluminum, mercury, oxygen
Compound A combination of the two or more elements in fixed proportion. Sugar, salt, carbon dioxide
Mixture Two or more substances combined together. Salt water, orange juice, tap water, milk, chocolate chip cookie
Homogeneous Mixture Mixtures that look as though they have only one set of properties. Apple juice, blue ink, cream soda, tap water
Heterogeneous Mixture Mixtures that contain two or more materials that are still visible. Raisin bread, chocolate chip cookie,
Colloid A heterogeneous mixture in which the particles do not settle. Mayonnaise, milk
Solution A homogeneous mixture of two or more substances. Salt water, apple juice
Suspension A heterogeneous mixture in which the particles settle slowly after mixing. Italian salad dressing, clay mixed with water, pulp orange juice
Mechanical Mixture An obviously heterogeneous mixture. Pizza, dirt
Pure Substance A substance made op of one kind of matter that can combine chemically. Oxygen, gold, carbon dioxide, pure water

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