GED Science Vocabulary Test
Questions All Solved Correct Answers
2025-2026 Updated.
Acid - Answer a compound that dissociates in water to produce hydrogen ions; usually tastes
sour; pH less than 7
Amoeba - Answer a type of protozoan that has no permanent shape
Ascorbic Acid - Answer vitamin C; found in citrus fruits, tomatoes, and green vegetables
Atom - Answer smallest unit of an element, consisting of a nucleus surrounded by electrons
Fission - Answer the breaking down of an atomic nucleus, into two or more parts, with a
great release of energy
Fuision - Answer the joining of atomic nuclei to form heavier nuclei
AUTOTROPH - Answer organism that nourishes itself by making organic materials out of
inorganic
BACTERIA - Answer the smallest one-celled organisms, having neither nucleus nor other
organelles
BAROMETER - Answer an instrument that measures air pressure
Base - Answer chemical compound that produces a salt when it reacts with an acid; an alkali;
pH more than 7
BIOME - Answer a community of plants and animals
CALORIE - Answer a unit of measure of heat or other forms of energy (not metric)
, CARBON DIOXIDE - Answer colorless, odorless gas present in the air in small amounts;
breathed out from the lungs
CARBON MONOXIDE - Answer poisonous gas that prevents oxygen from entering the red
blood cells; produced when gasoline is not completely burned
CATALYST - Answer a substance that speeds up the rate of a chemical reaction without any
change in itself
CELL - Answer basic unit of plant and animal life, consisting of a small mass of protoplasm,
including a nucleus, surrounded by a semipermeable membrane
CHLOROPHYLL - Answer a green pigment that enables green plants to make glucose by the
process of photosynthesis
CHLOROPLAST - Answer a small green body that contains chlorophyll
CHOLESTEROL - Answer fatty substance found in animal fats
CHROMOSOME - Answer one of several small, more or less rod-shaped bodies in the nucleus
of a cell; contains the hereditary factors (genes)
Climate - Answer a composite of weather conditions over a long period of time
Compound - Answer substance composed of two or more chemically united elements
CONDENSATION - Answer process by which a liquid or solid is formed from a vapor or gas
CONDUCTOR - Answer a material (e.g., copper wire) that carries a flow of electrons
(electricity)
CORROSION - Answer the weakening of a metal by chemical action, such as oxidation
Questions All Solved Correct Answers
2025-2026 Updated.
Acid - Answer a compound that dissociates in water to produce hydrogen ions; usually tastes
sour; pH less than 7
Amoeba - Answer a type of protozoan that has no permanent shape
Ascorbic Acid - Answer vitamin C; found in citrus fruits, tomatoes, and green vegetables
Atom - Answer smallest unit of an element, consisting of a nucleus surrounded by electrons
Fission - Answer the breaking down of an atomic nucleus, into two or more parts, with a
great release of energy
Fuision - Answer the joining of atomic nuclei to form heavier nuclei
AUTOTROPH - Answer organism that nourishes itself by making organic materials out of
inorganic
BACTERIA - Answer the smallest one-celled organisms, having neither nucleus nor other
organelles
BAROMETER - Answer an instrument that measures air pressure
Base - Answer chemical compound that produces a salt when it reacts with an acid; an alkali;
pH more than 7
BIOME - Answer a community of plants and animals
CALORIE - Answer a unit of measure of heat or other forms of energy (not metric)
, CARBON DIOXIDE - Answer colorless, odorless gas present in the air in small amounts;
breathed out from the lungs
CARBON MONOXIDE - Answer poisonous gas that prevents oxygen from entering the red
blood cells; produced when gasoline is not completely burned
CATALYST - Answer a substance that speeds up the rate of a chemical reaction without any
change in itself
CELL - Answer basic unit of plant and animal life, consisting of a small mass of protoplasm,
including a nucleus, surrounded by a semipermeable membrane
CHLOROPHYLL - Answer a green pigment that enables green plants to make glucose by the
process of photosynthesis
CHLOROPLAST - Answer a small green body that contains chlorophyll
CHOLESTEROL - Answer fatty substance found in animal fats
CHROMOSOME - Answer one of several small, more or less rod-shaped bodies in the nucleus
of a cell; contains the hereditary factors (genes)
Climate - Answer a composite of weather conditions over a long period of time
Compound - Answer substance composed of two or more chemically united elements
CONDENSATION - Answer process by which a liquid or solid is formed from a vapor or gas
CONDUCTOR - Answer a material (e.g., copper wire) that carries a flow of electrons
(electricity)
CORROSION - Answer the weakening of a metal by chemical action, such as oxidation
