GED Science Exam Questions and
Answers Graded A+
Abiogenesis - Correct answer-Belief that livings things may develop from lifeless
matter
Acid - Correct answer-A compound that In water produces hydrogen ions, usually
tastes sour, a pH less than 7
Acid rain - Correct answer-rain containing acids that form in the atmosphere when
industrial gas emissions (especially sulfur dioxide and nitrogen oxides) combine
with water
Alloy - Correct answer-Homogenous mixture composed of two or more metals
Amoeba - Correct answer-A type of Protozoan that has no permanent shape
Amorphous - Correct answer-having no definite form or distinct shape
Amplitude - Correct answer-The maximum value of a wave or vibration
Anaerobic respiration - Correct answer-Fermentation, or respiration in the absence
of oxygen
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,Anemia - Correct answer-lack of a normal number of red blood cells
Anode - Correct answer-Positive electrode of an electrolytic cell; negative terminal
of a battery; negative plate of a vacuum tube; site where oxidation occurs
Antibiotic - Correct answer-compound that blocks the growth and reproduction of
bacteria
Antibody - Correct answer-A protein, usually in the blood of an organism, that
serves to counteract the effects of disease-producing bacteriabor viruses
Antidote - Correct answer-a remedy that stops or controls the effects of a poison
Anticeptic - Correct answer-A substance that prevents the growth or activity of
bacteria
Antitoxin - Correct answer-Substance in the body neutralizes toxins
Appendix - Correct answer-Wormlike, narrow part of the alimentary canal, in the
lower right-hand part of the human abdomen
Armature - Correct answer-A piece of metal or a coil of wire that moves back and
forth, or rotates, in a magnetic field
Artery - Correct answer-a blood vessel that carries blood away from the heart to
the periphery of the body
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,Arthropods - Correct answer-A group of organisms that have jointed appendages,
an exoskeleton, bilateral symmetry, and reproduce sexually; insects, arachnids,
millipedes and cenitpedes, and crustaceans
Ascorbic acid - Correct answer-Vitamin C; found in citrus fruits, tomatoes, and
green vegetables
Aseptic - Correct answer-Free of living bacteria
Asexual reproduction - Correct answer-Producing offspring without inion of
individulaln or germ cells
Assimilation - Correct answer-Process by which digested food is utilized by the
body to build up or repair cells
Assimilation - Correct answer-Process by which digested food is utilized by the
body to build up or repair cells
Asteroid - Correct answer-One of a group of "minor plants" between Mars and
Jupiter, of which about 1,500 are known
Atmosphere - Correct answer-The whole mass of gases surrounding a planet
Atom - Correct answer-smallest particle of an element, consisting of a nucleus
surrounded bynelectrons
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, Atomic fission - Correct answer-The breaking down of an atomic nucleus, into two
or more parts, with a great release of energy
Atomic fusion - Correct answer-The joining of atomic nuclei to form heavier
nuclei, such as deuterium (heavy hydrogen) and tritium (another isotope of
hydrogen) to make helium, resulting in the release of enormous quantities of
energy
Auricle - Correct answer-An upper chamber of the heart thatnreceives blood from
the veins-also called the atrium
Autotroph - Correct answer-Organism (a green plant) that nourishes itself by
making organic materials out of inorganic
Auxin - Correct answer-a plant hormone that promotes root formation and bud
growth
Bacillus - Correct answer-aerobic rod-shaped spore-producing bacterium
Bacteria - Correct answer-(microbiology) single-celled or noncellular spherical or
spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission
Balance in Nature - Correct answer-the balence of animals and palntes in their
enviroment
Barometer - Correct answer-an instrument that measures atmospheric pressure
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Answers Graded A+
Abiogenesis - Correct answer-Belief that livings things may develop from lifeless
matter
Acid - Correct answer-A compound that In water produces hydrogen ions, usually
tastes sour, a pH less than 7
Acid rain - Correct answer-rain containing acids that form in the atmosphere when
industrial gas emissions (especially sulfur dioxide and nitrogen oxides) combine
with water
Alloy - Correct answer-Homogenous mixture composed of two or more metals
Amoeba - Correct answer-A type of Protozoan that has no permanent shape
Amorphous - Correct answer-having no definite form or distinct shape
Amplitude - Correct answer-The maximum value of a wave or vibration
Anaerobic respiration - Correct answer-Fermentation, or respiration in the absence
of oxygen
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,Anemia - Correct answer-lack of a normal number of red blood cells
Anode - Correct answer-Positive electrode of an electrolytic cell; negative terminal
of a battery; negative plate of a vacuum tube; site where oxidation occurs
Antibiotic - Correct answer-compound that blocks the growth and reproduction of
bacteria
Antibody - Correct answer-A protein, usually in the blood of an organism, that
serves to counteract the effects of disease-producing bacteriabor viruses
Antidote - Correct answer-a remedy that stops or controls the effects of a poison
Anticeptic - Correct answer-A substance that prevents the growth or activity of
bacteria
Antitoxin - Correct answer-Substance in the body neutralizes toxins
Appendix - Correct answer-Wormlike, narrow part of the alimentary canal, in the
lower right-hand part of the human abdomen
Armature - Correct answer-A piece of metal or a coil of wire that moves back and
forth, or rotates, in a magnetic field
Artery - Correct answer-a blood vessel that carries blood away from the heart to
the periphery of the body
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
,Arthropods - Correct answer-A group of organisms that have jointed appendages,
an exoskeleton, bilateral symmetry, and reproduce sexually; insects, arachnids,
millipedes and cenitpedes, and crustaceans
Ascorbic acid - Correct answer-Vitamin C; found in citrus fruits, tomatoes, and
green vegetables
Aseptic - Correct answer-Free of living bacteria
Asexual reproduction - Correct answer-Producing offspring without inion of
individulaln or germ cells
Assimilation - Correct answer-Process by which digested food is utilized by the
body to build up or repair cells
Assimilation - Correct answer-Process by which digested food is utilized by the
body to build up or repair cells
Asteroid - Correct answer-One of a group of "minor plants" between Mars and
Jupiter, of which about 1,500 are known
Atmosphere - Correct answer-The whole mass of gases surrounding a planet
Atom - Correct answer-smallest particle of an element, consisting of a nucleus
surrounded bynelectrons
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
, Atomic fission - Correct answer-The breaking down of an atomic nucleus, into two
or more parts, with a great release of energy
Atomic fusion - Correct answer-The joining of atomic nuclei to form heavier
nuclei, such as deuterium (heavy hydrogen) and tritium (another isotope of
hydrogen) to make helium, resulting in the release of enormous quantities of
energy
Auricle - Correct answer-An upper chamber of the heart thatnreceives blood from
the veins-also called the atrium
Autotroph - Correct answer-Organism (a green plant) that nourishes itself by
making organic materials out of inorganic
Auxin - Correct answer-a plant hormone that promotes root formation and bud
growth
Bacillus - Correct answer-aerobic rod-shaped spore-producing bacterium
Bacteria - Correct answer-(microbiology) single-celled or noncellular spherical or
spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission
Balance in Nature - Correct answer-the balence of animals and palntes in their
enviroment
Barometer - Correct answer-an instrument that measures atmospheric pressure
©COPYRIGHT 2025, ALL RIGHTS RESERVED 4
