5535314
| Question | Answer |
| atom | The smallest whole part of matter |
| element | A type of matter made up of one type of atom |
| molecule | A type of matter made of two or more atoms chemically bonded together |
| chemical symbol | A shorthand way to represent an element and molecule |
| compound | A type of matter made of two or more different types of atoms chemically bonded together |
| physical change | A type of change in which the form of matter changes it physical state as a result of energy changes |
| chemical change | A type of change where one or more substances are chemically altered into one or more new and different substances |
| chemical reaction | The process which brings about a chemical change |
| acid | A substance with particular chemical properties including turning litmus red, neutralising alkalis, often corrosive and sour-tasting. |
| metal | A type of matter which is typically a solid, shiny, malleable and ductile, with good electrical and thermal conductivity |
| alloy | A type of metal made by combining two or more metallic elements to give different physical properties |
| lustre | The manner in which a newly exposed surface of a metal reflects light |
| malleable | The ability of a metal to be beaten to form shapes without breaking |
| ductile | The ability of a metal to be drawn out to form a wire |
| conductivity | The ability of a substance to allow electricity or heat to travel through it |
| extraction | The process by which metals are removed from mineral ores |
| electrolysis | The process by which electric current is passed through a substance to effect a chemical change. |
| decomposition | A type of chemical reaction where a substance is broken down into two or more simpler substances |
| synthesis | A type of chemical reaction where two or more substances chemically combine to form a new substance |
| precipitation | A type of chemical reaction where two soluble salt solutions are combined to form an insoluble solid |
| neutralisation | A type of chemical reaction where an acid and a base interact to form a salt and water |
| biopolymer | A very large molecule made by living organisms |
| petroleum | Known as crude oil, an oily mixture of hydrocarbons that can be extracted from layers of rock and used to produce fuel and polymers |
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