Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
146 Cards in this Set
- Front
- Back
What is absolute zero?
|
The temperature at which matter has lost all its thermal energy
|
|
What is accretion?
|
The growing together of plant or animal tissues that are normally separate.
|
|
What is acid?
|
A substance in which H acts as a metal (+ ion).
|
|
What is ADP?
|
Adenosine diphosphate, a compound involved with energy storage and release in the cell
|
|
What is aerobic?
|
relating to a living organism that requires atmospheric oxygen.
|
|
What is air mass?
|
a body of air having common characteristics.
|
|
What is alimentary canal?
|
the food tube in animals.
|
|
What is allele?
|
one pair of genes.
|
|
What is alloy?
|
a material composed of two or more metals.
|
|
What is altimeter?
|
an instrument used to measure altitude
|
|
What is AMP?
|
a unit of current equaling one coulomb per second
|
|
What is anaerobic?
|
relating to organisms unable to survive in atmospheric oxygen
|
|
What is anemometer?
|
an instrument that measures wind speed.
|
|
What is angstrom?
|
a linear measurement equal to 1 x 10(-8) (0.00000001 cm)
|
|
What is anhydrous?
|
Without H(2)O
|
|
What is anode?
|
positive electrical terminal in an electric cell
|
|
What is antibiotic?
|
a substance produced by molds, fungi, or bacteria. Used to cure bacterial infections.
|
|
What is aorta?
|
the large artery leaving the heart to the body.
|
|
What is apogee?
|
the point at which an orbiting satellite is farthest from earth.
|
|
What is Aquifer?
|
a layer of rock that holds H(2)O
|
|
What is archaeopteryx?
|
the first bird
|
|
What is artery?
|
large blood vessels carrying oxygenated blood away from the heart.
|
|
What is asexual reproduction?
|
reproduction without sperm and eggs
|
|
What is astronomical unit?
|
distance between the earth and the sun - 93,000,000 miles
|
|
What is atomic weight?
|
the relative weight of an atom, compared to the standard -C(12)
|
|
What is ATP?
|
adenosine triphosphate, a compound involved with energy storage and release in the cell.
|
|
What is axon?
|
a part of the nerve cell that conducts electrical impulses away from the cell body.
|
|
What is barometer?
|
an instrument used to measure air pressure.
|
|
What is base?
|
a substance which combines with hydroxyl ions.
|
|
What is binary star?
|
two stars revolving around each other
|
|
What is brownian movement?
|
the erratic movement of particles due to collisions with atomic or molecular matter.
|
|
What is BTU?
|
british thermal unit, a unit of heat energy needed to raise the temperature of one pound H(2)O one degree F
|
|
What is buffer?
|
a substance which will resist any change in the pH of a solution.
|
|
What is calorie?
|
a unit of heat energy needed to raise one gram of H(2)O one degree
|
|
What is catalyst?
|
a substance that controls the rate of a chemical reaction
|
|
What is cathode?
|
negative electrical terminal in an electric cell
|
|
What is central nervous system?
|
brain and spinal cord
|
|
What is centrifugal reaction?
|
the reaction of a body to centripetal force.
|
|
What is centripetal force
|
the force that causes a body to conform to movement around a curve.
|
|
What is cerebellum?
|
the part of the brain involved with balance and muscle coordination
|
|
what is cerebrum?
|
the part of the brain involved with intelligence.
|
|
What is chlorophyll?
|
green substance used in the food manufacturing process in plants.
|
|
What is chronometer?
|
a ship's clock which is used to determine longitude.
|
|
What is coelom?
|
a space forming the body cavity of an animmal
|
|
What is colloid?
|
a particle suspended in a medium (most often, liquid)
|
|
What is color?
|
that property of light related to wavelength.
|
|
What is condensation nuclei?
|
the "seeds" upon which H(2)O molecules will condense, forming cloud droplets.
|
|
What is coriolis effect?
|
the deflection of the atmosphere and ocean currents due to the earth's rotation
|
|
What is cotyledon?
|
a thick food leaf formed from the seed of a newly germinated plant
|
|
What is cross-pollination?
|
the movement of pollen from one plant to another plant
|
|
What is cryogenics?
|
the science of low temperature phenomena
|
|
What is curie?
|
a unit of radioactivity
|
|
What is decibel?
|
a unit of sound level intensity
|
|
What is deciduous?
|
relating to woody plants that lose their leaves in winter.
|
|
What is dendrite?
|
a part of the nerve that conducts electrical impulse to the cell body.
|
|
What is density?
|
D=m/v, mas per unit volume
|
|
What is dew point?
|
the temperature at which the air is saturated with H(2)O vapor.
|
|
What is diaphragm?
|
muscular separation between the chest and abdominal cavities.
|
|
What is dicotyledon?
|
two thick food leaves formed from the seed of a newly germinated plant
|
|
What is diffusion?
|
the spreading out of particles to fill a space
|
|
What is DNA?
|
deoxyribonucleic acid. a large molecule that controls cell functions. contains cell's genetic information
|
|
What is doppler effect
|
the apparent change in the wavelength of energy emitted by a source as determined b the receiver.
|
|
What is dorsel?
|
relating to upper or "back" surface of an animal
|
|
What is dyne?
|
a unit of force; 1 dyne = 1gram/cm per sec(2)
|
|
What is ecology?
|
the study of the relationship between organisms and their environment.
|
|
What is effervescence?
|
the rapid excape of gas from a liquid (i.e. soda)
|
|
What is efficiency?
|
the comparison of work input of a machine to its work output
|
|
What is endoderm?
|
inner layer of cell in an animal body.
|
|
What is endothermic?
|
the absorption of heat energy during a chemical reaction
|
|
What is energy level?
|
the location around the nucleus where electrons are found.
|
|
What is enzyme?
|
catalyst used in chemical reactions in cells
|
|
What is epicenterr?
|
point on the surface of the earth that is directly above the focus of an earthquake
|
|
What is equilibrium?
|
a situation in which two opposite processes occur at the same rate
|
|
What is equinox?
|
the days when the sun's direct rays strike perpendicularly at the equator
|
|
What is erg?
|
unit of work; 1 erg = 1 dyne x 1 cm
|
|
What is erosion?
|
movement of sediments by wind, water, and ice.
|
|
What is eutrophication?
|
aging of ponds or lakes as plants and sediments fill them in
|
|
What is evolution?
|
the gradual change of organisms with respect to acquired traits.
|
|
What is exothermic?
|
relating to the release of heat energy during a chemical reaction.
|
|
What is extrusive rocks?
|
igneous rocks that form on or near the surface
|
|
What is fault?
|
a break in rocks along which movement has occurred.
|
|
What is fertilization?
|
the joining together of sperm and egg
|
|
What is fibrinogen?
|
a protein present in blood which aids in clotting
|
|
What is firn?
|
snow or ice pellets that become part of a glacier
|
|
What is fission?
|
the breakup of a heavy nucleus into two smaller weighted nuclei
|
|
What is focus?
|
the point in the earth's crust where an earthquake originates
|
|
What is force?
|
that action which produces or prevents changes in motion
|
|
What is fossil?
|
remains or evidence of life as it was in the past
|
|
What is fovea?
|
a part of the eye which has many cones.
|
|
What is frequency?
|
number of cycles per unit time
|
|
What is friction?
|
a force that opposes motion
|
|
What is front?
|
the line along which two air masses collide
|
|
What is fruit?
|
an ovary
|
|
What is fulcrum?
|
a pivot point
|
|
What is fusion?
|
the combining of two lightweight nuclei into one heavy necleus
|
|
What is galvanize?
|
to coat Fe or steel with Zn
|
|
What is gametophyte?
|
a stage in reproduction in which gametes are formed.
|
|
What is gastrula?
|
the early stage of development when germ layers appear
|
|
What is geiger counter?
|
an instrument that detects radioactivity
|
|
What is gene?
|
a portion of the DNA molecule that produces a trait in the organism
|
|
What is genetic code?
|
the chemical sequence in DNA that produces a trait
|
|
What is geosyncline?
|
downfold of the earth's crust which is being filled with sediments
|
|
What is geyser?
|
steam and hot water that erupt from cracks in the earth's surface
|
|
What is gill?
|
an organ used to remove O(2) from water H(2)O
|
|
What is glacier?
|
a moving body of ice
|
|
What is glucose?
|
a simple sugar
|
|
What is gonads?
|
male and female reproductive organs
|
|
What is hard water?
|
H(2)O containing dissolved minerals
|
|
What is heat of formation?
|
the amount of heat needed or released when a compound is formed
|
|
What is herbaceous?
|
relating to the stem of a plant that lives only one season
|
|
What is herbivores?
|
plant-eating animals
|
|
What is heredity?
|
the passing of traits from parents to offspring
|
|
What is horizon?
|
a line of vision where the surface meets the sky
|
|
What is horsepower?
|
a unit of power equal to 550 ft.-lb./sec
|
|
What is host?
|
an organism used by a parasite to supply it with food
|
|
What is humus?
|
decayed organic matter
|
|
What is hydration?
|
the attachment of H(2)O molecules to a particle of matter
|
|
What is hygrometer?
|
an instrument that determines relative humidity
|
|
What is hypothesis?
|
a possible explanation
|
|
What is igneous rocks?
|
rocks that form from liquid rock (lava/magma)
|
|
What is inorganic?
|
materials which are not hydrocarbons
|
|
What is insolation?
|
incoming solar raiation
|
|
What is insulator?
|
a poor conductor of heat or electricity
|
|
What is insulin?
|
a hormone produced by the pancreas to regulate the oxidation or sugar in cells
|
|
What is international date-line?
|
the 180 degree east or west longitude line (bent for convenience) that separates dates east and west (crossing over the dateline est to west-gain a day; west to east - lost a day)
|
|
What is intrusive rocks?
|
igneous rocks that form deep within the earth's crust
|
|
What is invertebrate?
|
animal lacking a backbone
|
|
What is iris?
|
colored portion of the eye
|
|
What is iso?
|
prefix meaning "the same'
|
|
What is isobar?
|
a line connecting points of equal air pressure on a weather map
|
|
What is joule?
|
unit of work equaling 1 nt. x 1 m.
|
|
What is kinetic energy?
|
energy of motion.
|
|
What is knot?
|
one nautical mile/hour
|
|
What is lactase?
|
an enzyme used to change lactose to glucose.
|
|
What is latitude?
|
degrees north or south of the equator.
|
|
What is lava?
|
molten rock that reaches the earth's surface.
|
|
What is lever?
|
a bar used as a simple machine.
|
|
What is light reaction?
|
first stage of photosynthesis in which energy is produced and used to split H(2)O molecules
|
|
What is lipase?
|
an enzyme used to change fat into fatty acids and glycerin
|
|
What is lithosphere?
|
crust of the earth
|
|
What is local moon?
|
the time at which the sun in its transit across the sky crosses the observer's meridian (longitude)
|
|
What is longitude?
|
degrees east or west of the prime peridian
|
|
What is lunar month?
|
29 1/2 days
|
|
What is luster?
|
shine of a mineral surface (metallic, earthy, pearly, glassy, etc)
|
|
What is magma?
|
liquid rock that is located deep within the earth's crust
|
|
What is magnitude?
|
the apparent brightness of a star
|