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FCAT Sci Vocabulary

Words for Science FCAT

an environmental factor not associated with living organism Abiotic
velocity/time; rate of change in velocity, usually expressed in meters per second squared Acceleration
the extent to which a measurement is near the standard or expected value Accuracy
a particular change in a population of organisms, in response to changes in the populations Adaptation
force of air on moving objects Air Resistance
any alternate form of a gene that an organism may have for a particular trait Allele
in any periodic function (e.g., a wave) the distance between the position of rest and the highest point of a wave. Amplitude
new individuals are formed without the involvement of gametes (ie, budding) Asexual reproduction
the layers of gas that surround Earth, other planets, or stars Atmosphere
the smallest unit of matter Atom
the imaginary line on which an object rotates (runs through Earth between the North Pole and the South Pole) Axis
the existence of different species in a given area or specific period of time Biodiversity
factors in an environment relating to living organisms Biotic
unit of energy; the amount of heat needed to raise one gram of water one degree Celsius at standard atmospheric pressure Calorie
animal or plant that consume or obtains nutrients from animals; meat-eater Carnivore
the force on an object toward the center of the circle Centripetal Force
a physical change that occurs when matter changes to a liquid, gas, or solid Change of State
a change in a substance that results in producing a different chemical Chemical Change
the breakdown of rocks as a result of chemical processes Chemical Weathering
connection of electrical elements forming a complete path for the flow of current Circuit
all the populations belonging to different species and sharing the same area Community
a substance made up of at least two different elements held together by chemical bonds Compound
the relative amount of a particular substance Concentration
the process of changing from a gas to a liquid Condensation
direct heating; the transmission of heat through a medium and without the motion of the medium Conduction
controlled use and/or maintenance of natural resources; efforts to preserve or protect those resources. Conservation
a fundamental principle stating energy cannot be created or destroyed but only change form Conservation of energy
the principle that mass cannot be created or destroyed Conservation of Mass
a star pattern identified and named as a definite group; usually thought of as forming certain shapes or figures in a specific region of the sky Constellation
an organism that feeds on another organism for food Consumer
heat transfer in a gas or liquid by the circulation of currents from one region to another Convection
the peak or highest point on a wave Crest
outermost layer of Earth covering the mantle Crust
any organism that feeds or obtains nutrients by breaking down organic matter from dead organisms Decomposer
concentration of matter of an object; number of individual in the same species that live in a given area; the mass per unit volume of a substance in a given area Density
factor being measured or observed in an experiment Dependent Variable/ Responding Variable
layering matter in a natural process Deposition
the bending of a wave around an obstruction Diffraction
tendency of certain alleles to mask the expression of their corresponding alleles Dominance
shaking of the ground caused by a sudden release of energy in the crust Earthquake
an ecological community, together with its environment, functioning as a unit Ecosystem
the relative effectiveness of a system or device determined by comparing input and output Efficiency
the emission of the entire range of electromagnetic spectrum including: gamma rays, x-rays, ultraviolet radiation, visible light, microwaves, and radio waves Electromagnetic Radiation
a stable elementary particle that is negatively charged and orbits the nucleus of an atom Electron
a substance that cannot be reduced by chemical means Element
a quantity that describes the capacity to do work; a source of usable power Energy
diagram that compares the amount of energy available at each position, or level, in the feeding order Energy Pyramid
a change of energy from one form to another (e.g., mechanical to electrical, solar to electrical) Energy Transfer
a measure of randomness or disorder of a closed system Entropy
the sum of conditions affecting an organism, including all living and nonliving things in an area, such as plants, animal, water, soil, weather, land forms, and air Environment
an imaginary circle around Earth’s surface located between the poles and that divides the Northern and Southern Hemispheres Equator
the wearing away of Earth’s surface by the breakdown and transportation of rock and soil Erosion
the process by which a liquid is converted to its vapor phase by heating the liquid Evaporation
a procedure that is carried out and repeated under controlled conditions in order to discover, demonstrate, or test, a hypothesis; includes all components of the scientific method Experiment
transfer of energy through various stages as a result of feeding patterns of a series of organisms Food Chain
the interconnected feeding relationships in a food chain found in a particular place and time Food Web (cycle)
a quality that tends to produce movement or acceleration of a body on the direction of its application; a push or pull Force
a whole or part of a plant or animal that has been preserved in sedimentary rock Fossil
the remains of animals or plant from past geologic ages that are now in a form suitable for use as an energy resource (e.g., oil, coal, or natural gas) Fossil Fuels
the number of cycles or waves per unit time Frequency
a force that opposes the relative motion of two material surfaces in contact with one another Friction
the pivot point of a lever Fulcrum
a large collection of stars, gases, and dust that are part of the universe bound together by gravitational forces Galaxy
one of the fundamental states of matter in which the molecules do not have a fixed volume or shape Gas
a force of attraction between two masses Gravitation
the observed affect of the force of gravitation Gravity
a place in an ecosystem where an organism normally lives Habitat
a form of energy resulting from the temperature difference between a system and its surroundings Heat
an animal that feeds on plants Herbivore
cell or organism that has two different alleles for a particular trait Heterozygous
cell or organism that has identical alleles for a particular trait Homozygous
A type of rock formed from molten or partly molten material that cools and hardens Igneous Rock
a type of simple machine; a slanted surface that makes it easier to move a mass from a lower point to a higher point Inclined Plane
the factor that is changed in an experiment in order study changes in the dependent (responding) variable Independent/ Manipulated Variable
the property of an object, due to its mass, by which it resists any change in its position unless overcome by force Inertia
a procedure that is carried out in order to observe a response caused by a stimulus; not a complete experiment Investigation
the energy possessed by a body because of its motion Kinetic Energy
a type of simple machine; consists of a rigid bar that pivots about a fulcrum, used to transmit and enhance power or motion Lever
the entire sequence of event’s in an organism’s growth and development Life-Cycle
electromagnetic radiation that lies within the visible range Light
one of the fundamental states of matter with a definite volume but no definite shape Liquid
having the property of attracting iron and certain othermaterials by virtue of a surrounding field of force Magnetic
the region where magnetic force exists around magnets or electric currents Magnetic Field
the amount of matter an object contains Mass
a solid, liquid, or gas that possesses inertia and is capable of occupying space Matter
the process of nuclear division in cells during which the number of chromosomes is reduced by half Meiosis
It forms because of extreme changes caused by heat, pressure, or chemical environments Metamorphic Rock
relating to an object too small to be visible without the use of an instrument used for enlargement Microscopic
a process of nuclear division in eukaryotic cells during which the nucleus of a cell divides into two nuclei, each with the same number of chromosomes Mitosis
the product of a thorough blending of two or more substances, not chemically combined Mixture
the smallest unit of matter of a substance that retains all the physical and chemical properties of that substance; consists of a single atom or a group of atoms bonded together Molecule
a natural satellite that revolves around a planet Moon
indicates the fraction of the Moon’s disc that is illuminated as seen from Earth Moon Phase
periodic rise and fall of sea-level that occurs twice-monthly when the Sun, Moon, and Earth are at right angles to each other Neap Tide
a particle, object, or system with no a net charge Neutral
a subatomic particle having zero charge, found in the nucleus of an atom Neutron
a substance & or material that can only be replenished over millions of years; cannot be reused (i.e., fossil fuels) Nonrenewable Resource
a cell structure that contains the cell’s genetic material; also the center region of an atom where protons and neutrons are located Nucleus
a depression on the surface of Earth occupied by water Ocean Basin
a structure containing different tissues that are organized to carry out a specific function of the body Organ
any living thing that shows the characteristics necessary for life Organism
a chemical process by which plants trap light energy to convert carbon dioxide and water into carbohydrates (sugars) Photosynthesis
a reaction; a change in matter from one form to another, without forming new substances Physical Change
a large body in space that orbits a star and does not produce light of its own Planet
theory in which Earth’s crust is divided into sections whose movements cause seismic activity (i.e., earthquakes, volcanoes) along their borders Plate Tectonics
any alteration of the natural environment producing a condition harmful to living organisms; may occur naturally or as a result of human activities Pollution
a group of organisms of the same species living in a specific geographical area Population
stored energy; the energy an object has because of its position or structure Potential Energy
an organism that preys on and eats animals; usually an animal Predator
the force exerted per unit area Pressure
an organism caught or hunted for food by another organism Prey
a piece of glass that disperses a beam of white light into its component colors Prism
an organism that makes its own food from the environment Producer
unicellular organisms belonging to the Kingdom Protista Protist
a subatomic particle having a positive charge and which is found in the nucleus of an atom Proton
a type of simple machine; circular lever used to change the direction of a force Pulley
a graphic check board used to determine results from a particular genetic cross Punnett Square
emission of energy in the form of rays or waves Radiation
an allele for a trait that will be masked unless the organism is homozygous for this trait Recessive
the bouncing off of light, sound, or heat from a surface Reflection
a change in the direction of a wave that occurs as it passes from one medium to another of different density Refraction
a material or substance that is replaced or restored, as it is used, by natural processes in a reasonable amount of time Renewable Resource
any material that can be used to satisfy a need Resource
a plan of inquiry that uses science process skills as tools to gather, organize, analyze, and communicate information Scientific Method
a type of simple machine that consists of an inclined plane wrapped around a cylinder Screw
formed from layers of sediment that overlay and squeeze together or are chemically combined Sedimentary Rock
involves the union of gametes producing an offspring with traits from both parents Sexual Reproduction
a star and all planets and other bodies that orbit it; the region in space where these bodies move Solar System
having a definite shape and a definite volume; one of the fundamental states of matter Solid
a mixture of two or more substances uniformly dispersed throughout a single phase Solution
an instrument that uses a prism to separate and catalog light wavelengths Spectroscope
amount of distance traveled divided by time taken; the time-rate at which any physical process takes place Speed
increased range of the rise and fall of sea level that occurs twice monthly at when the Earth, moon and sun are aligned Spring Tide
a large, self-luminous body held together by gravity and powered by thermonuclear reactions Star
the closest star to Earth and the center of our solar system Sun
a set of objects, organisms, or different parts acting to form a whole System
internal energy found by adding the kinetic energy of particles making up a substance Thermal Energy
similar cells acting to perform a specific function; four basic types are muscle, connective, nerve, and epidermal Tissue
the surface, shape, and composition of a land area Topography
the motion of an organism or part of an organism toward or away from an external stimulus Tropism
the lowest point on a wave Trough
the total sum of all matter and energy that exists Universe
an event, condition, or factor that can be changed or controlled in order to study or test a hypothesis in a scientific experiment Variable
the time rate at which a body changes its position vector; quantity whose magnitude is expressed in units of distanceover time Velocity
a repetitive movement around an equilibrium point Vibration
a non-cellular, disease-causing particle that uses the genetic material from its host to reproduce Virus
a vent or fissure in Earth’s surface through which magma and its associated materials are expelled Volcano
a measure of the amount of space an object takes up; also the loudness of a sound or signal. Volume
the path it takes as it is being cycled through the environment, including condensation, evaporation, and precipitation Water Cycle
the distance between crests of a wave Wavelength
the natural processes that break down and change rock into soil, sand, and other materials Weathering
a type of simple machine that consists of an inclined plane used to separate two objects Wedge
a type of simple machine, a circular frame or disk revolving around a central axis Wheel and Axle
Created by: EnidLL