Home > Flashcards > Science > Science Vocab #1

Details Title: Science Vocab #1 Description: Review Total Flash Cards: 20 Created: 01/17/2005 13:58:41	To study from this set of flash cards, or to create your own your own study flash cards, register HERE. If you are already a registered user, CLICK HERE.
Cards Term electrode Definition a metal strip used in electroysis Term matter Definition anything that has weight and takes up space Term electroysis Definition using an electric current to break the bond between elements Term characteristic properties Definition they never change, and can be used to identify a substance Term compounds Definition two or more substances chemically combined Term elements Definition they can not be broken down by ordinary chemical means Term Democritus Definition a Greek philosopher Term density Definition mass and volume Term atoms Definition the smallest part of an element Term boiling point Definition the tempature at which a substance turns from a liquid to a gas Term ore Definition a rock with metal in it Term molecule Definition a group of atoms that are joined together as one unit Term chemical change Definition these make new substances Term physical changes Definition these change the form of a substance, but not its identity Term chemical activity Definition the ability to undergo chemical change Term melting point Definition the tempature at which a substance changes from a solid to a liquid Term chemical bond Definition the force that holds two atoms together Term mixtures Definition two or more substances mixed together but not chemically combined Term John Dalton Definition a British school teacher Term pure substances Definition they are made of only one kind of matter, and has definite properties