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50 more science vocab words
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50
Science
8th Grade
03/06/2012

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Term
Laboratory report
Definition
A lab report is an account of an experiment and what was discovered during the experiment. Typically, lab reports present data, discuss results, and provide conclusions. Some lab reports also describe the experiment and the procedures followed. As a student, lab experiments provide you with hands-on experience. Writing about your work in a lab then forces you to think logically about your data. For example, if you get unexpected results from a lab experiment, you'll speculate why you got those results in the report.
Term
lava
Definition
the molten, fluid rock that issues from a volcano or volcanic vent.
Term
law of conservation on energy
Definition
the principle that in a system that does not undergo any force from outside the system, the amount of energy is constant, irrespective of its changes in form.
Term
law of conservation of matter
Definition
a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system
Term
law of super position
Definition
a basic law of geochronology, stating that in any undisturbed sequence of rocks deposited in layers, the youngest layer is on top and the oldest on bottom, each layer being younger than the one beneath it and older than the one above it.
Term
light year
Definition
the distance traversed by light in one mean solar year, about 5.88 trillion mi. (9.46 trillion km): used as a unit in measuring stellar distances. Abbreviation: lt-yr
Term
liquid
Definition
composed of molecules that move freely among themselves but do not tend to separate like those of gases; neither gaseous nor solid.
Term
low tide
Definition
the tide at the point of maximum ebb.
Term
lunar eclipse
Definition
the obscuration of the light of the moon by the intervention of the earth between it and the sun
Term
magma
Definition
molten material beneath or within the earth's crust, from which igneous rock is formed.
Term
meteorite
Definition
a mass of stone or metal that has reached the earth from outer space; a fallen meteoroid.
Term
meteoroid
Definition
any of the small bodies, often remnants of comets, traveling through space: when such a body enters the earth's atmosphere it is heated to luminosity and becomes a meteor.
Term
meteorology
Definition
the science dealing with the atmosphere and its phenomena, including weather and climate.
Term
mixture
Definition
an aggregate of two or more substances that are not chemically united and that exist in no fixed proportion to each other.
Term
neutron
Definition
an elementary particle having no charge, mass slightly greater than that of a proton, and spin of 1 / 2 : a constituent of the nuclei of all atoms except those of hydrogen.
Term
newton
Definition
the SI unit of force, equal to the force that produces an acceleration of one meter per second per second on a mass of one kilogram.
Term
Newton's Laws of Motion
Definition
three laws of mechanics describing the motion of a body. The first law states that a body remains at rest or in uniform motion in a straight line unless acted upon by a force. The second law states that a body's rate of change of momentum is proportional to the force causing it. The third law states that when a force acts on a body due to another body, then an equal and opposite force acts simultaneously on that body
Term
non-cummunicable disease
Definition
or NCD is a disease which is not infectious.
Term
non-renewable resource
Definition
n
Definition: any natural resource from the Earth that exists in limited supply and cannot be replaced if it is used up; also, any natural resource that cannot be replenished by natural means at the same rates that it is consumed
Term
nuclear fission
Definition
the splitting of the nucleus of an atom into nuclei of lighter atoms, accompanied by the release of energy
Term
nuclear fusion
Definition
a thermonuclear reaction in which nuclei of light atoms join to form nuclei of heavier atoms, as the combination of deuterium atoms to form helium atoms.
Term
nucleus
Definition
a specialized, usually spherical mass of protoplasm encased in a double membrane, and found in most living eukaryotic cells, directing their growth, metabolism, and reproduction, and functioning in the transmission of genic characters.
Term
parasite
Definition
an organism that lives on or in an organism of another species, known as the host, from the body of which it obtains nutriment.
Term
pathogen
Definition
any disease-producing agent, especially a virus, bacterium, or other microorganism.
Term
penumbra
Definition
the partial or imperfect shadow outside the complete shadow of an opaque body, as a planet, where the light from the source of illumination is only partly cut off.
Term
period of revolution
Definition
the time in which a planet or satellite revolves once about its primary.
Term
period of rotation
Definition
the time in which a body rotates once on its axis.
Term
petrification
Definition
the act or process of petrifying; the state of being petrified
Term
phase
Definition
the particular appearance presented by the moon or a planet at a given time.
Term
physical property
Definition
any property used to characterize matter and energy and their interactions
Term
plate boundry
Definition
A tectonic boundary where two plates are moving toward each other.
Term
qpollutant
Definition
any substance, as certain chemicals or waste products, that renders the air, soil, water, or other natural resource harmful or unsuitable for a specific purpose.
Term
precipitate
Definition
to fall to the earth's surface as a condensed form of water; to rain, snow, hail, drizzle, etc.
Term
predator
Definition
any organism that exists by preying upon other organisms.
Term
prey
Definition
an animal hunted or seized for food, especially by a carnivorous animal.
Term
producer
Definition
an organism, as a plant, that is able to produce its own food from inorganic substances.
Term
punnett square
Definition
in genetics, a type of grid used to show the gametes of each parent and their possible offspring; a type of grid that can indicate all the possible outcomes of a genetic cross; also called checkerboard
Term
qualitative data
Definition
The term qualitative data is used to describe certain types of information.
Term
quantitive data
Definition
Numerical data (or quantitative data) is data measured or identified on a numerical scale.
Term
reactant
Definition
any substance that undergoes a chemical change in a given reaction.
Term
recessive trait
Definition
In genetics, a trait that must be contributed by both parents in order to appear in the offspring.
Term
respiration
Definition
the act of respiring; inhalation and exhalation of air; breathing.
Term
rotation
Definition
the movement or path of the earth or a heavenly body turning on its axis.
Term
salinity
Definition
of, containing, or resembling common table salt; salty or saltlike
Term
scientific inquiry
Definition
Scientific inquiry is a way to investigate things and propose explanations for their observations. Data is gathered, hypothesis suggested and observations recorded
Term
seismic wave
Definition
an earth vibration generated by an earthquake or explosion
Term
soil
Definition
the portion of the earth's surface consisting of disintegrated rock and humus.
Term
solubility
Definition
the quality or property of being soluble; relative capability of being dissolved.
Term
spectroscope
Definition
an optical device for producing and observing a spectrum of light or radiation from any source, consisting essentially of a slit through which the radiation passes, a collimating lens, and an Amici prism.
Term
stomata
Definition
1.
any of various small apertures, especially one of the minute orifices or slits in the epidermis of leaves, stems, etc., through which gases are exchanged.
2.
Zoology . a mouth or ingestive opening, especially when in the form of a small or simple aperture.
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