| A | B |
|---|
| abrasion | the wearing away of rock by other rock particles carried in water, ice, wind, or gravity |
| absorb | to take in or suck or swallow up |
| acid rain | rainwater that has mixed with sulfur, carbon, and nitrogen compounds found in the air from burning fossil fuels |
| acidified | to make or become acid |
| adhesive | to stick by or as if by gluing, suction, grasping, or melting |
| capillary action | the combined force of attraction among water molecules (cohesion) and with the molecules of surrounding materials (adhesion) |
| celsius | relating to or having a scale for measuring temperature on which the interval between the triple point and the boiling point of water is divided into 99.99 degrees with 0.01° representing the triple point and 100.00° the boiling point; |
| chemical weathering | to expose to the weather by chemical means |
| cohesive | the action or state of sticking together |
| density | the mass of a substance per unit volume (density expressed in grams per cubic centimeter. d=m/v) |
| dissolve | to mix or cause to mix with a liquid so that the result is a liquid that is the same throughout |
| erosion | the carrying away of rock particles by wind, water ice, or gravity |
| gas | matter with no definite shape or volume |
| H2O | the chemical formula for water (2 molecules of hydrogen and 1 molecule of oxygen) |
| ice | frozen water |
| ice (frost) wedging | the process that splits rock when water seeps into cracks, freezes and expands, then thaws over and over again |
| liquid | matter with a volume but no definite shape |
| molecule | the smallest particle of a substance having all the characteristics of the substance <a molecule of water> |
| organism | something having many related parts that function together as a whole |
| physical (mechanical) weathering | to expose to the weather by physical means |
| polar molecule | A molecule that has electrically charged areas |
| solid | matter with a definite shape and volume |
| solution | a liquid mixture in which the minor component (the solute) is uniformly distributed within the major component (the solvent) |
| solute | the minor component in a solution, dissolved in the solvent |
| solvent | a usually liquid substance capable of dissolving one or more other substances |
| specific heat | the amount of heat needed to increase the temperature of a certain mass of a substance by 1ºC |
| states | a condition or stage of the physical makeup of something |
| surface tension | the attractive force felt by surface molecules of a liquid from the molecules beneath that tends to draw the surface molecules into the mass of the liquid and makes the liquid take the shape having the least surface area |
| transparent | allowing light to pass through |
| universal solvent | the title water is called because it can dissolve so many substances including solids, liquids, and gases |
| water vapor | water in a gaseous form especially when below boiling temperature and spread through the atmosphere |
| conclusion | what was learned during the experiment; explaining how the results either supported or rejected your hypothesis |
| data | information collected |
| dependent variable | the part of an experiment that changes on its own |
| experiment | a structured test of a hypothesis |
| hypothesis | an educated guess as to the outcome of an experiment; a good hypothesis has a supporting reason |
| independent variable | the part of an experiment that you change or alter |
| inference | to form a conclusion from your observation |
| observation | using your senses to identify a something |
| organism | anything living |
| prediction | a declaration of outcome made in advance based upon observations |
| procedure | a listing of the steps of a project or experiment |
| qualitative observation | an observation that does not involvement measurements or numbers |
| quantitative observation | an observation that involves measurement and numbers |
| results | what happens in the experiment; data collected during the experiment collected usually written in sentence form |
| scientific method | a way of thinking about nature that involves the use of certain skills to solve problems in an orderly manner |
| variable | any factor that can change in an experiment |
| volume | the amount of space that matter occupies |
