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Down: 1) Intermolecular forces are forces of attraction or repulsion which act between neighboring particles (atoms, molecules or ions). They are weak compared to the intramolecular forces, the forces which keep a molecule together3) firm and stable in shape; not liquid or fluid4) The changing of a liquid into a gas, often under the influence of heat (as in the boiling of water). (See vaporization.) Note: The evaporation of water from the oceans is a major component in the hydrologic cycle. 5) the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat. 6) the temperature at which a given solid will melt 8) a substance that has no fixed shape and yields easily to external pressure; a gas or (especially) a liquid. Across: 2) the continuous physical force exerted on or against an object by something in contact with it. 7) the temperature at which a liquid boils and turns to vapor. 9) an airlike fluid substance which expands freely to fill any space available, irrespective of its quantity. 10) having a consistency like that of water or oil, i.e., flowing freely but of constant volume. 11) water that collects as droplets on a cold surface when humid air is in contact with it. 12) the quality or state of being strong, in particular.
 

 

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