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Ch 16 Int Science

What is matter

QuestionAnswer
What is displacement? Finding the volume of object by submerging it in water and measuring how much water the objects displaces or pushes aside.
What is sublimation? Solid can change directly to gas when heat energy is added.
What is evaporation? It describes the transformation from liquid to gas.
What is meniscus? The curve formed by the surface of a liquid.
What is indirect measurement? It is calculating the size of very large or small objects through use of proportional relationships.
What is law of conservation of mass? It states that the total mass of products of a reaction is equal to the total mass of reactants.
What is matter? Anything that has mass and takes up space.
What is mixtures? A substance that contains more than one kind of matter.
What is a molecule? The smallest particle of a compound that retains the properties of the compound.
What are substances? A mixture that cannot be separated into Different kinds of matter using physical means.
What are elements? Substances that contain only one kind of matter.
What are examples of elements? Copper metal, oxygen gas and liquid nitrogen.
What are compounds? Substances made of 2 or more elements that cannot be separated by physical means.
What are examples of compounds? Table salt, rust, carbon dioxide gas.
What is homogeneous mixture? A mixture in which every sample of it has the same composition.
What are examples of homogeneous mixture? Soda pop, air, chocolate ice cream and window cleaner.
What is hetergeneous mixture? A mixture in which every sample of it might have a different composition.
What are examples of hetergeneous mixture? Chicken soup, soil, fudge ripple icecream, blood.
What is an atom? The smallest particale of an element that can exists alone or in combination with other atoms.
what are the two categories of matter? They are mixtures and substances.
What are the four familiar states of matter? They are solid, liquid, gas and plasma.
What is the movement of atoms or molecules in solid form? Molecules constantly vibrate but cannot switch places with other molecules.
What is the movement of atoms or molecules in liquid form? Molecules move faster and slip out of position. Molecules can move.
What retains it shape and size? Solid.
What has a definite size but not shape? Liquids.
What is melting point? Physical process that resuls in the phase change of a substance from a solid to liquid.
What is freezing point? Temperature at which liquid becomes a solid.
What is boiling point? Temperature at which a liquid is converted to vapour when heated.
Created by: jazznsoul64
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