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Chemistry Gr5
Chemistry Grade 5 VA Mr. G 876739 mles
Question | Answer |
---|---|
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 |
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