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Chemistry Gr5

Chemistry Grade 5 VA Mr. G 876739 mles

Mixture (mezcla) Two or more materials (substances) stirred together
Property (Característica) A characteristic of an object, something you can observe such as size, color, shape, or texture
Solution (Solución) A special mixture formed when a substance dissolves in water
Dissolving A process in which one material disperses uniformly into another material, so that the first material SEEMS TO disappear
Evaporation (Evaporación) Causes liquids to dry up, the liquid turns to gas and disperses into the air, leaving any dissolved material behind
Crystal (Cristal) The solid form of a material that can be identified by its properties, such as shape, color, and pattern
Solvent (Solvente) The liquid part of a solution, the water in hot chocolate
Solute (Soluto) The solid dissolved in the solvent of a solution, the hot chocolate powder in hot chocolate
Saturated Solution A solution which cannot dissolve any more solvent- example, when you put so much sugar in your ice tea that some of it settles to the bottom and can not be stirred up
Solubility How easy or hard it is to dissolve a solute in a solvents- it is easier if the solvent is hot
Concentration The amount of material dissolved in a measure of liquid.
Dilute (Diluído) To make a solution less concentrated by adding more liquid.
Volume (Volumen) The three-dimensional space occupied by something.
Chemical Reaction A change that may occur when two or more materials (chemicals) are mixed together.
Reactant A chemical that reacts to produce a change when mixed with another chemical.
Physical Change (Cambio físico) A type of change in which the form or appearance is changed or altered, but one substance is not transformed into another - example crumpling a sheet or paper or breaking a pane of glass or freezing water into ice or melting cheese
Chemical Change (Cambio químico) A change which forms new substances
Alchemy Ancient belief that common metals could be turned into gold and there was an elixir of life-
Bonus- Write your own question. What your own answer.
Atoms (Átomos) Smallest "whole" part of matter that is a substance - the word means "not divisible" - we now have a model of atoms that says atoms are made of protons, electrons, and neutron - (or a quantum model that is different, but probably a better model)
Molecule (Molécula) Two or more, similar or different, atoms joined together - examples H2o, O2, Co2
Element (Elemento) One of the basic materials listed in the periodic table - can not be broken down into smaller units and still have the same properties
Physical Property (Característica física) Can easily be observed or measured - example the appearance of a person, the smell or texture of a food
Chemical Property (Característica química) How a substance will react to a chemical change, one generally must change the substance to to learn its chemical properties- example, vinegar will give off a gas when mixed with baking soda
Aerosol A colloid system in which solid or liquid particles are suspended in a gas,
Foam Bubbles of air or gas in a liquid
Gel A jelly-like colloid in which a liquid is dispersed in a solid
Compound Two are more elements joined together chemically
Colloid A mixture in which small particles of one substance do not dissolve like in a solution, and will not settle out like in a mixture
Copyright © 2012 S Gissendanner Free for personal or classroom use
Created by: Mr Giss