4. 4
Properties of matter
Two pieces of matter cannot occupy the
same space
– Example: the sun cannot occupy the same
place in space as the moon!!
5. 5
Bodies of matter, systems of matter
Bodies of matter (BODY = CUERPO):
Objects having definite limits.
Systems of matter:
Things with limits that are not precise
6. 6
a stone a tree
the sea
a forest
a house
a seashell
Yourself!
(=tú mismo/a)
a mountain range
Which is a body of matter and which a system of matter?
BODY
(has got definite
Ilimits)
BODY SYSTEM
(doesn’t have precise limits)
BODY
BODY
BODYSYSTEM
SYSTEM
7. 7
Extensive properties of matter
• Extensive properties depend on the
amount (=cantitad) of matter present
– Examples: mass, weight, length, volume
This cube of stone has mass
of 4 kg, a length of 3 cm, and
a volume of 27 cm3
Mass, length, volume depend on the amount of
matter present!
This cube of stone has mass
of 120 kg, a length of 20 cm,
and a volume of 4000 cm3
!!!!!
8. 8
Intensive properties of matter
• Intensive properties of matter do not
depend on the amount (=cantitad) of
matter present
Examples of intensive properties: density,
color, boiling point
(to boil = hervir)
9. 9
Example
They have different volume, length, mass, etc.
But they have the same boiling point (100ºC):
BOILING POINT IS AN INTENSIVE PROPERTY!
A pan full of water A thermal pool
At which temperature does the water in the pan boil?
At which temperature does the water in the pool boil?
100ºC
100ºC
10. 10
Matter can be measured
• Some extensive and intensive properties
can be measured
For example, we can measure properties such as:
LENGTH (=longitud) (extensive)
VOLUME (extensive)
DENSITY (intensive)
MASS….. (extensive)
Do you understand the verb to measure?
Can you translate it in Spanish?
TO MEASURE = MEDIR
11. 11
MEASURING LENGTH
• Length: the distance between two points
We use rulers and measuring tape to
determine length
RULER MEASURING TAPE
In Europe, what are the most common units of
measurement for length?
12. 12
Units of Length:the Ladder Method
Km
Hm
Dam
m
dm
cm
mm
×10 for each step
÷10 for each step
For example:
15 m = …… cm1500
13. 13
25 Hm = …… m
1 Km = …..…… mm
Km
Hm
Dam
m
dm
cm
mm
×10 for each step
÷10 for each step
725 dm = …….. Dam
1,000,000
2,500
7.25
14. 14
MEASURING AREA
• Area: the space occupied by two dimensions,
length × width
The area of this rectangle is:
4 × 2 = 8
4
2
What is the unit of
measurement for area?
Square metres (m )2
16. 16
MEASURING VOLUME
• Volume: the total space occupied by a
body, length × width × height
Example: the volume of a fish tank
Volume is measured in ………….
Cubic metres
18. 18
MEASURING CAPACITY
• Capacity: the total space occupied by a
fluid (another way of measuring volume)
Example:
the capacity of a
bottle of Coke or
of a fuel tank
I am sure you know at least one unit of measurement
of capacity. Can you speak its name aloud?
19. 19
One of the most commonly used
units of capacity is….
LITRE
21. 21
MEASURING MASS
• Mass: the amount of matter in a body
– Measured in grams (g) or kilograms (kg) using
a scale
A scale is not this: A scale is this:
23. 23
MEASURING DENSITY
• Density: how concentrated the mass is,
mass ∕ volume
Example: which object has the higher density,
an anvil ( ) or a sponge( ) ?
ANSWER: the anvil, because its mass is more concentrated!
The unit of measurement for density is….
g/cm (grams over cubic centimetres)
3
24. 24
TEMPERATURE
• Temperature: the degree of hotness or
coldness of a body or system; the thermal
energy of a body
– Measured in degrees Celsius (°C), Fahrenheit
(°F), and Kelvin (K)
• How do we measure temperature here
in Europe?
