use basic scientific measurements and measurement tools (TEAS7)

volume

the amount of space something takes up.

mass

a measurement of inertia, commonly considered the amount of material contained by an object and causing it to have weight a gravitational field.

length

measurement of distance from end to end.

SI unit (systeme Interntionale)

international system of Units based on meters, kilograms, seconds, amperes, kelvin, candela, and mole. Commonly known as the metric system.

liter

measurement of liquid volume

kilo

1000

hecta

100

deca

10

deci

0.1

centi

0.01

milli

0.001

micro

0.0001

the volume of a three-dimensional object has

length, width, and height, all of which are measured in length units

ex. 10cm x 10cm x10cm = 1,000 cm3

dimensional analysis

is used to convert measurements from one unit size to another.

ex. to convert 5 liters to milliliters, we can multiply 5 L by 1,000 ml/1L.

if we were measuring to the first small line after the 2,

the length would be 2.1 cm or 21 milliliters (mm)

length is typically measured with a

ruler or meterstick.

volume can be calculated by

multiplying the measurements of length, width, and height; the sides can be measured using rulers or meterstick.

volumetric pipette

a device used for precise measurements of small amounts of liquid

graduated cylinder

a narrow cylinder used to measure liquid volume

balances for used to measure

the mass of an object.

large items with a large mass would like by measured using

kilograms (kg)

measuring a few drops of water would make more sense in

milliliters than liters.

For length, small things like insects and fingernails should be measured in

millimeters

Objects like the width of a piece of paper can be measured in

centimeters.

Height of a door or ceiling should be measured in

meters

the distance between two towns can be measured in

kilometers.