Question | Answer |
have a definite structure, shape , and volume | solids |
have a definite volume, but not a definite shape | liquids |
have no definite shape or volume | gases |
causes water droplets to hang on the end of a leaf | adhesion |
the reason a paper clip can float on water | surface tension |
are greater in cold water | dissolved oxygen levels |
helps form coral skeletons | dissolved carbon dioxide |
occurs at the surface of a liquid | evaporation |
occurs at any place within a liquid | boiling |
mass per unit volume | density |
salt what the boiling point of water | raises |
liquid water is thought to maintain what shape the longest | tetrahedral |
ice is held together in what shape | hexagonal |
the settling of very small particles, such as clay, at the bottom of a liquid is know as | siltation |
The process where matter in an area of high concentration moves to an area of low concentration is called | difusion |
is a property of liquid that allows it to resist external forces | Surface tension |
is the force a liquid that exerts on a body in all directions at one depth | Hydrostatic pressure |
the phase change from a soild to a liquid calle | melting |
the phase change from a liquid to a gas called | vaporization |
the upward force that acts on every object that is at least partially submerged in water | buoyancy |
the attractive force between two unlike substances | adhesion |
the attractive force between two of the same molecules | cohesion |
when one substance fully incorporates into a liquid, it is know as | dissolving |
too much of what can cause exess algae growth and deplete dissolved oxygen supplies | nitrogen, phosphorous |
what happens to water molecules between 4 and 0 | the hydrogen bonds begin to expand |
a bond between molecules due to the attraction of slightly negative and slightly positive charged atoms | hydrogen bond |
a bond between two atoms where the atoms share electrons | covalent bond |
the building block of matter | atoms |
two or more atoms chemically combined | molecule |
boning occurs within a water molecule | covalent |
bonding occurs between water molecules | hydrogen |