Everything that takes up space and has mass is considered matter. The document defines the fundamental properties of matter like mass, volume, shape, and texture. It then discusses the International System of Units (SI) and defines the base units for length, mass, time, and temperature. It provides conversions between different units of length, area, volume, capacity, mass and temperature.

1. WHAT IS MATTER?
Everything that takes up space and has mass.
Therefore, everything around us is matter.

2. Properties
General properties: mass, volume, weight.
Specific properties: shape, size, colour, texture,
hardness,etc.

3. THE INTERNATIONAL SYSTEM OF
MEASUREMENT (SI) Base units
LENGTH MASS TIME TEMPERATURE
UNIT metre kilogram second kelvin
SYMBOL m kg s K

4. LENGTH: the distance between two points
Kilometre km 1000 m
Metre m 1 m
Centimetre cm 0,01 m
Millimetre mm 0,0001m
Example: the room is 3 metres long.

5. Other conversions
1 cm= 0,39 inches (pulgadas)
1 inche = 2,54 cm
1 foot (pie)= 0,30 metres
1 m= 3,28 feet
A mile= 1,6 km
A km= 0,62 miles
A yard= 0,91 metres
1 m= 1,09 yards
inches<feet<yard<miles

6. SURFACE AREA: the extension of a body
in two dimensions (length and width). It´s a
derived unit from length.
Square kilometre km2 1.000.000 m2
Square metre m2 1 m2
Square centimetre cm2 0,0001 m2
2 2
Square millimetre mm 0,000000 m
Example: the room is 3 metres long and 2 metres
wide.

7. VOLUME: the space that occupies a
body.It´s a derived unit from length.
3
Cubic metre m
Example: the room is 3 metres long, 2 metres wide
and 1,5 metres high.
CAPACITY: the amount of liquid a vessel can
contain.
Unit equivalence between volume and capacity:
1m3 1000 L
1dm3 1L
3
1cm 1mL
Other units are pints (0,57L), gallons(4,55L),

8. MASS, TEMPERATURE AND TIME
WHAT IS MASS?: the amount of matter that a body
has. (kg)
1 oz(ounce)= 20,34g 1g=0,03oz
1 pound= 0,45 kg ounce< pound
WHAT IS TEMPERATURE?: it´s related to the
amount of heat a body gives off or absorbs. (K)
WHAT IS TIME? : it measures the passing of events.
(s)

9. DENSITY: is the relationship (ratio)
between the mass of a body and the volume
it occupies. (kg/m3)
Example: oil floats on water because it is less dense.
For the same volume of oil and water, water has
more matter than oil so water is more dense.