MEASUREMENT IN SCIENCE Scientific investigations involve making measurements

• Scientific investigations involve making measurements. • A measurement includes both a number

Le Système International d'Unités (SI) • standard system of units • modern version of

MASS • The amount of matter (or ‘stuff’) in an object • The same,

WEIGHT • Measure of the gravitational force on an object • Varies with location

VOLUME • The amount of space an object takes up – Cubic meter (m

To find the volume of a REGULAR object: Length x Width x Height

To find the volume of an IRREGULAR object: Displacement Method

To find the volume of a LIQUID: LIQUID Meniscus Graduated Cylinder

TIME • The interval between two events – Second (s) – Hour (h)

TEMPERATURE • Measure of the average kinetic energy of the particles that make up

LENGTH • Measurement of distance between ends – Millimeter (mm) – Centimeter (cm) –

AREA • The amount of surface within a set of boundaries • Expressed in

DENSITY • Measure of the amount of matter that occupies a given space. •

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MEASUREMENT IN SCIENCE

• Scientific investigations involve making measurements. • A measurement includes both a number and a unit of measure.

Le Système International d'Unités (SI) • standard system of units • modern version of the metric system

MASS • The amount of matter (or ‘stuff’) in an object • The same, no matter where the object is located in the universe ØGram (g) ØKilogram (kg)

WEIGHT • Measure of the gravitational force on an object • Varies with location • On the moon, your weight is 1/6 th of your weight on Earth • SI unit of weight = N (Newton)

VOLUME • The amount of space an object takes up – Cubic meter (m 3) – Milliliter (m. L) – Liter (L)

To find the volume of a REGULAR object: Length x Width x Height

To find the volume of an IRREGULAR object: Displacement Method

Archimedes

To find the volume of a LIQUID: LIQUID Meniscus Graduated Cylinder

TIME • The interval between two events – Second (s) – Hour (h)

TEMPERATURE • Measure of the average kinetic energy of the particles that make up a material. – Kelvin (K) – Celsius (°C)

LENGTH • Measurement of distance between ends – Millimeter (mm) – Centimeter (cm) – Meter (m) – Kilometer (km)

AREA • The amount of surface within a set of boundaries • Expressed in square units (length x width) – Square meter (m 2) – Square centimeter (cm 2)

DENSITY • Measure of the amount of matter that occupies a given space. • Calculated by dividing mass by volume • D=M÷V – Grams per cubic centimeter (g/cm 3) – Grams per milliliter (g/m. L)