| A | B |
|---|
| theory | hypothesis that has been tested and supported by a great amount of evidence over a long period of time. |
| law | statement describing (but not explaining) a natural event or phenonmenon. |
| hypothesesis | suggested explanation to a problem or observation based upon known information. |
| expierement | used to test a hypothesis. |
| variable | anything that can affect the results of an experiance. |
| control | part within the expierement that is maintained without change in order to provide a comparison for the part of the expirement containing a variable. |
| data | observations and measurments made during an expirement. |
| conclusion | a summary that explains whether or not the data supports the hypothesis. |
| application | new use to which results are put or new technique developed. |
| distance from earth to moon | km |
| length of a bacterium | nano |
| mass of a bowling ball | kg |
| mass of an asprin tablet | mg |
| dropperful of medicine | mL |
| 3.0 m | 300 cm |
| 1,500 mL | 1.5 L |
| 35 cg | .350g |
| 0.05 m | 50 mm |
| 2.5 L | 2,500 mL |
| 0.25 km | 250 m |
| In an experiment, one ___ is tested at a time to determine how it affects results. | variable |
| lens that allows greater magnification | high power objective lens |
| regulates the amount of light | diaphragm |
| the microscope rests on this | base |
| used for final focusing | fine adjustment knob |
| eyepiece | ocular |
| platform upon which to mount the slide | stage |
| holds eyepiece lens at top and objective lens at bottom | body tube |
| holds the tube and stage and attches them to the base | arm |
| holds the slide in place | stage clips |
| lens used to locate the specimen | low power objecive lens |
| used for first focusing | coarse adjustment knob |
| rotating piece that holds objective lens | nose piece |
| reflects light to the specimen | mirror |
| chemical sometimes used to make the specimen visible | stain |
| this describes the use of equipment and materials in an experiment | procedure |
| this is the part of an experiment that provides a reliable standard for comparison | control |
| the information already recorded about a scientific stubject is the scientific | record |
| what are the recorded facts and measurements from an experiment | data |
| the practical use of scientific knowledge is | research |
| what is an explanation of observations that have been tested many times | theory |
| a suggested solution to a scientific problem | hypothesis |
| instruments and our senses make up ____during an experiment | observations |
| is performed under carefully controlled conditions to test a hypothesis | experiment |
| a scientific ____ describes how nature works | law |
| to be accepted, a scientific discovery must produce ___ each time it is tested | the same results |
| if after numerous tests a major hypothesis cannot be shown to be false, it mayy be accepted as a | theory |
| new obervations that do not agree wiht an accepted theory may cause the theory to be | rejected |
| is a logical explanation to a problem based on an observation | conclusion |
| the commonly used unit in the measurement of temperature in the Biology laboratory is the | Celsius |
| the unit of time in the SI system | second |
| a fixed quantity used for comparison | variable |
| the unit of mass used in the laboratory is | gram |
| the space occupied by an object is its | volume |
| the amount of matter in an object is its | mass |
| a scale commonly used by scientists for measuring temperature is the ___ scale | Celsius |
| there are ____ in one kilogram | 1000 milligrams |
| standards are important for comparing observations and are used by | everyone |
| one-hundredth of a meter is written as | centimeter |
| how many millimeters make a centimeter? | 10 |
| a prefix meaning one thousand standards units is | milli- |
| on the Celsius scale, water boils at | 100 degrees |
| 50 cc of water would equal which quantity | 500 mL |
| which of the following units would we use to measure the distance to australia | kilometers |
| controls movement into and out of cell | cell membrane |
| watery material which contains many materials invloved in cell motabolism | cytoplasm |
| servees as a pathway for the transport of materials throughtout the cell also associated wuth synthesis and storage | golgi bodies |
| control center | nucleus |
| protien is made | ribosomes |
| packeges and secretes the products of cell | er |
| involved with cell digestion of food within teh cell | lysosomes |
| the powerhouse of teh cell | mitochondria |
| organelles with fulid containing stored food and wastee | vacuole |
| controls movement into and out of cell | nuclauer membrane |
| gives the cell its shape, not in animals | cell wall |
| site of photosynthesis | chlorophyll |
| rod-shaped bodies that carry genetic information | carriers |
