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29 Cards in this Set
- Front
- Back
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Celsius (°C) temperature
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A temperature scale on which water has a freezing point of 0°C and a boiling point of 100°C.
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centimeter
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A unit of length in the metric system; there are 2.54 cm in 1 inch.
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Conversion Factor
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A ratio in which the numerator and the denominator are quantities from an equality or given relationship. For example, the conversion factors for the relationship kg = 2.20 lb are written as the following. 2.20 lb / 1 kg and 1 kg / 2.20 lb.`
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cubic centimeter (cm³, cc)
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The volume of a cube that has 1 cm sides, equal to 1 mL.
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Density
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The relationship of the mass of an object to its volume expressed as grams per cubic centimeter (g/cm³), grams per milliliter (g/mL), or grams per Liter (g/L).
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Equality
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A relationship between two units that measure the same quantity.
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Exact Number
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A number obtained by counting, or definition.
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Experiment
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A procedure that tests the validity of a hypothesis.
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gram (g)
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The metric unit used in the measurement of mass.
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hypothesis
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An unverified explanation of a natural phenomenon.
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Kelvin (K) temperature sclae
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A temperature scale on which the lowest possible temperature is 0°K.
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kilogram (kg)
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A metric mass of 1000g, equal to 2.20 lb. The kilogram is the SI standard unit of mass.
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liter (L)
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The metric unit for volume that is slightly larger than a quart.
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Mass
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A measure of the quantity of material in an object.
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measured number
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A number obtained when a quantity is determined by using a measuring divice
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meter (m)
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The metric unit for length that is slightly longer than a yard. The meter is the SI standard unit of length.
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metric system
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A system of measurement used by scientists and in most countries of the world.
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milliliter (mL)
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A metric unit of volume equal to one-thousandth of a L (0.001L).
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observation
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Information determined by noting and recording a natural phenomenon.
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prefix
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The part of the name of a metric unit that precedes the base unit and specifies the size of the measurement. All prefixes are related on a decimal scale.
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Scientific method
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The process of making observations, proposing a hypothesis, testing the hypothesis, and developing a theory that explains a natural event.
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Scientific notation
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A form of writing large and small numbers using a coefficient between 1 and 10, followed by a power of 10.
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second
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The unit of time in the SI and metric system.
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SI
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The International System of units that modifies the metric system.
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significant figures
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The numbers recorded in a measurement.
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specific gravity (sp gr)
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A relationship between the density of a substance and the density of water:
sp gr = density of sample/density of water |
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temperature
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An indicator of the hotness or coldness of an object.
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Theory
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An explanation of an observation that has been validated by experiments that support a hypothesis.
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volume
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The amount of space occupied by a substance.
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