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Republic of the Philippines
Department of Education
Region 1
Division of Pangasinan II
MANAOAG NATIONAL HIGH SCHOOL
Manaoag, Pangasinan
1, 2, 3, 4
LETS MEASURE THE
WORLD
PREPARED BY :
AILEEN D. GOMEZ
RINA B. RAMOS
STEVEN C. GAERLAN
JOHN ROBERT C. AQUINO
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Hello there my dear students! Are you
ready to start our lesson?
In this topic you will know about the
measurement we use in our daily life. This
module, help you to understand what is
the difference between mass and weight
and other important things that you want
to know about this topic , so lets proceed,
now if you are ready !
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m
INTERNATIONAL SYSTEM International system is the modern form of the metric system and is the
worldsmost widely used system of measurement, used in both everyday
commerce and science. It comprises a coherent system of units of measurement
built around seven base unit, 22 named and an indeterminate number of
unnamed coherent derived units, and a set of prefixes that act as decimal based
multipliers.
LESSON 1: SI UNITS
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SI UNITSQUANTITY NAME OF BASE SI UNIT SYMBOL
LENGTH METER OR METRE m
MASS KILOGRAM Kg
TIME SECOND s
ELECTRIC CURRENT AMPERE A
THERMODYNAMIC
TEMPERATURE
KELVIN K
AMOUNT OF SUBSTANCE MOLE mol
LUMINOUS INTENSITY CANDELA cd
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Write TRUE if the statement is correct and if FALSE change the underlined word
to the correct answer .
1.Metric system is the worlds most widely used system of measurement.2.The international system is used in scientific work and in everyday measurement in
many parts of the world .
3.Small letter m is the correct symbol for mass.4.There are 22 named and an indeterminate number of unnamed science derived
units.5.The correct unit of electic current is ampere.
II. Matching type : match the quantity with their name of base si unit.
A. B.1.Luminous intensity a. second2.Time b. kelvin3.Amount of substance c. candela4.Length d. mol5.Thermodynamic Temperature e. meter
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Science makes use of several measuring instruments.
*For measuring volumes of liquid , the graduated cylinderis most often
used.
*For measuring smaller volumes of liquids, the measuring pipets and
syringes are used.
*For measuring mass, aplatform balance is most often used. The mass of
an object has,a while weight refers to the effect of the gravity on the
object. The SI unit for weight is newton (N).
* A vernier caliperis used to measure length of small objects. Aruler, a
meter stick and a tape measure are more familiar tools used to
LESSON 2: MEASURING
INSTRUMENTS
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measure the length ,width or height of the objects.
* A thermometeris used to measure temperature. Thermometers make
use of either mercury or alcohol. Both substances are very sensitive that
they rises or fall when there is a change in temperature .
I. Arrange the jumble letter to answer the following:1.Used for measuing mass. O T F L A P M R N A A B L E C2.Used to measure length of small objects. N V R E E R I L R C A E P L3.Used to measure volume of liquid. U G R D A A D E N T N C R Y E I L D4.Used to measure temperature. R T E H T E E R M M O5.Used to measure smaller volumes of liquid. T P I S E P and G S I N Y E S R
II. Draw the following measuring tools .1.meter stick
2. graduated cylinder
3. platform balance
4. themometer
5. pipets
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Ooppsss ! sorry students , I forgot to tellthat before you proceed to our lesson, you
need to answer the following question below.
THANK YOU AND GOOD LUCK !PRE-TEST :
MULTIPLE CHOICE : Choose the correct answer to the
following question.
1. ________ is anything that has mass and volume
a. weight b. mass c. earth
2.This is the measure of the gravitayional pull of an object.
a. mass b. weight c. air
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3. Which is not true asbout uses of science measurement ?
a. science uses measurement to quantify industry .
b. measurement consist of number and unit.
c. used for scientific purposes.
4. It refers to the certain digits and the estimated digit of a
measurement.
a.Scientific notation b. dimensional analysis c. significant figure
5.Refers to the nearness of measurement to a reference value or
standard value.
a.Accuracy b.precision c. scientific notation
IDENTIFICATION : Identify what each of the following scenarios
describe. Write A, if it describes accuracy ; B, if
precision; and C if both accuracy and precision .
________ 1. At a birthday party , many blindfolded teens pinned the tail
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of the donkey on its nose instead of on its rear .________2.Two carpenters were measuring the length of a 12.5 by 10
Rectangular room. One carpenter measured the length to be
12 ft and 6.5 in. the other carpenter measured it to be 12
Ft and 5 in.
________3.Cellphones have built in locator systems that are able to
indicate their location within a radius of about five km.
________4.A chemist determined that the dissolved oxygen level of the
fishpond water Dropped to about 1.5 mg/L at 3:00 am. The
dissolved oxygen was actually 1.8 mg/L.________5.A student recorded the following temperature as the boiling
point of water :80, 81, 80 and 82 degree celsius . (hint :
what is the boiling point of water ?)
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III. Give the correct number of significant figures in each.
1.75 6.0.003762.0.75 7. 4.004.00
3.480 8. 400 400
4.9 500 9. 0.04050
5.0.9500 10. 76243
IV: Rewrite the following into standard notation.
1. 6.23 x 10-22. 5.70 x 1043. 8. 256 x 10104. 4.005 x 10-255. 3.4 x 1030
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