San Beda College Alabang

Learning Module Page
Third Year

Science (Chemistry)
(For Section 31)

Direction:
List down / research on the properties of water due to hydrogen bonding essential to life on earth.

For inquiries contact:
Mr. Cajigal - 09212423948

(For Sections 30-39)

Reference: Chemistry textbook i-Chemistry by G. Santos and A. Danac
Directions:

Read Chapter 2: Measuring and Calculating
Answer the following on your chemistry notebook:
a. Practice problems:
    1. Nos. 1 and 2 page 35
    2. Nos. 1 and 2 page 39-40
    3. No. 1a-j page 43
b. Review and practice: nos. 8-14 pages 49-50

For inquiries contact:
Ms. AJ Monzon - 09192450447 / ajmonzon_2007@yahoo.com
Ms. L.A. Cabaluna - 09209523220

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Math (Geometry Lecture)
(For all Third Year Students)

Adjacent Angles
- angles that have a common vertex, common side and no common interior points.

Kinds of angle:

Zero angle - an angle whose measure is 0°.
Acute angle - an angle whose measure is more than 0° but less than 90°.
Right angle - an angle whose measure is 90°.
Obtuse angle - an angle whose measure is greater than 90° but less than 180°.
Straight angle - an angle whose measure is 180°.
Reflex angle - an angle whose measure is greater than 180° but less than 360°.
Perigon angle - an angle whose measure is 360°.

P: Given any angle, there is a unique real number between 0° and 180° known as its degree measure.

Example: Use the figure to answer the following questions:

an angle named by one letter
1 and 2 with letters
the sides of 3
an angle adjacent to 1

Exercises: Find the measure of each angle:

For numbers 11-15, refer to the given to supply the missing angle measures.

	mRMQ	mLQK	mRMK
11.	18	31
12.	37	44
13.	24		58
14.		51	72
15.	43		82

For numbers 16-20, write T if the statement is True and F if otherwise.

   16. An angle has exactly one bisector.
   17. If bisects ABC, then ABDDBC.
   18. The bisector of an angle forms two obtuse angles.
   19. The bisector of a right angle forms two acute angles.
   20. If 12, then m1=m2.

Angle Pairs

Complementary angles - two angles whose sum of measures is 90°.
Supplementary angles - two angles whose sum of measures is 180°.
Linear pair - pair of angles that are adjacent whose non common sides are opposite rays and are supplementary to each other.
Vertical angles - two angles that are non-adjacent formed by two intersecting lines.

P: Linear Pair Postulate: If two angles form a linear pair, then they are supplementary angles.
T: If two angles are vertical, then they are congruent.

   B is a complement of A
   mA = 40°
   mB = 50°
   mA = 40° + mB = 50° = 90°

   FEQ is a supplement of EQI
   mFEQ = 110°
   mEQI = 70°
   mFEQ + mEQI = 180°

   Vertical Angles:
   1 and 3
   2 and 4

(For Sections 39 and 38)
Exercises:

1. Find the value of X according to the triangles below.

2. Find the area and perimeter of the figures below.

For inquiries contact:
Ms. Ignacio
Mrs. Non

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SOCIAL STUDIES (World History)
(For Sections 30 - 39)

Direction:

History is past politics and politics present history - E.A. FREEMAN
History, real solemn history, I cannot be interested in The quarrels of popes and kings, with wars and pestilences in every page; the men all so good for nothing, and hardly any women at all - JANE AUSTEN
History is an argument without end - PETER GREY
Anybody can make history; only a great man can write it - OSCAR WILDE
History is simply a piece of paper covered with print; the main thing is still to make history, not to write it - OTTO VON BISMARCK
It has been said that although God cannot alter the past, historians can. It is perhaps because they can be useful to him in the respect that he tolerates their existence - SAMUEL BUTLER
It is not the literal past, the “facts” of history, that shaped us, but images of the past embodied in language -BRIAN FRIEL
History is a damn dim candle over a damn dark abyss - W.S. HOLT

HOMO ERECTUS- man walking upright
Java Man - Java, Indonesia by Eugene Dubois
- top of a skull, teeth, left thigh bone remains
Peking Man- Peking China
- charred bones, knew how to build and use fire
>Heidelberg Man - Heidelberg, Germany (lived between 2nd and 3rd glacial periods)
- lower jaw had teeth close to that of modern man
Neanderthal Man- Neander Valley, Germany (3rd and 4th glacial periods)
- large brain, low forehead, jutting jaw, receding chin, looked like an ape-man, short and stooped, had powerful arms
- great hunter and tool maker, 1st bury the dead,
life after death

2 THEORIES ON THE ORIGIN OF MAN

OUT OF AFRICA- Homo erectus left Africa to settle in Europe and Asia; Homo sapiens appeared in Africa and followed the migration
MULTI-REGIONALISM- Homo erectus migrated from Africa but Homo sapiens’ emigration didn’t happen rather they evolved from the Homo erectus

HUMAN PREHISTORY
*STONE AGE- use of stone tools

PALEOLITHIC (300,000-100,000 BCE)
*simple flakes from stone pieces
*crude knives, chopping tools
* hand-axe
*fire for hardening the blades

MESOLITHIC (100,000-30,000 BCE)
* Neanderthal man period
* specialized spearhead, knives, and scraping tools

NEOLITHIC (9000-4000 BCE)
* Polished Stone Age
*grinding tools and weapons to be sharpened
*produced own food
* planting
*“Neoljthjc revolution”

METAL AGE - brought progress and change in civilization

COPPER AND BRONZE (3000-2000 BCE)
*Asia Minor people used copper to make tools and weapons
* Egyptians - 1st to make use of copper
*copper + tin= bronze, harder metal, easier to shape, brought changes and progress in agriculture

IRON AGE (1200-500 BCE)
*Hittites invented the iron—backbone of industries
*plow was invented—cultivate large tract of lands
*built dikes, sled, wheel, sailboat

CHANGES/RESULTS/ADVANTAGES
*trading began, became metal smiths, sailors, potters, traders
*expanded trade and commerce
*growth of towns and cities
* professions were developed
*stable form of government
* crude writing started

ECONOMIC DEVELOPMENT

HUNTING AND FISHING
*game and fish
*caves, crude huts, rivers, creeks
*wanderers
*chipped stones, bow and arrow
* bark of trees, leaves, animal skin as clothes
PASTORAL OR SHEPHERD
*animal domestication started—dogs, sheep, goats, horses
* nomadic life with less movement
*built better shelters
* main aim—quest for food
* barter system as trading
AGRICULTURAL
*soil cultivation to raise better produce
*seed planting, started farming
*built fixed homes
*private ownership recognized
HANDICRAFT
*hand manufacture with simple tools started
*family engaged in household industries and handicrafts
*family needs were met and supplied
INDUSTRIAL
* ushered by Industrial Revolution
* mass production of goods, presence of factories
* great inventions, worldwide commercial activities and production in large quantities

Stages of Development

PALEOLITHIC PERIOD (500,000-10,000 BCE)

*people know the art of engraving, carving, and painting
*animal hunting and gathering
*knew how to make fire
*made clothing out of animal hide
*food gatherers
*nomadic/wanderers

NEOLITHIC PERIOD (10,000-3,500 BCE)

*food producers
*learned to herd and domesticate animals
*Iearned to devise and improve his stone tools: sharper and smoother; invented the axe
*cooked food, art of pottery
*permanent settlers, built homes
*wove clothing
*crude form of government
*believed in god and goddesses
Paleolithic and Neolithic Ages Compared: both used stones and the major difference is how they used these stones to improve their life.

METAL AGE

Copper (5,000 BCE)

*first used by the Egyptians to make articles and ornamentals

Bronze Age (2000 BCE)

*mixture of copper and tin
*stronger and better tools produced like swords, daggers, axes, knives, hammers,
arrowheads, farm implements
*large towns and cities grew
*government enlarged
*crude system of writing appeared

Iron Age (1000 BCE)

*produced by Hittites
*harder and more durable than copper and bronze

That in all things God may be glorified