FIRST PERIODICAL EXAM IN SCIENCE 7,SCIENCE 8 AND AUTOMOTIVE SERVICING 8 WITH TOS

Republic of the Philippines
Department of Education
Negros Island Region
Division of Sagay City
District of Sagay IX
EUSEBIO LOPEZ MEMORIAL INTEGRATED SCHOOL
Eusebio Heights, Central Lopez, Brgy. Paraiso, Sagay City
FIRST PERIODICAL EXAMINATION IN SCIENCE 7
Direction: Read each question carefully and write the letter of the correct answer.
1. Ma’am Pamela is selling mixed vegetables, buko pandan, lugaw and mineral water in the school
canteen. Which is an example of homogeneous mixture?
a. mixed vegetables b. buko pandan c. lugaw d. mineral water
2. Which is NOT an example of heterogeneous mixture?
a. mixed vegetables b. buko pandan c. lugaw d. mineral water
3. What does it mean when we say that, “oil is a water fearing substance”?
a. it is insoluble b. it is soluble c. it is fearful d. it is not brave
4. Why do you think that the sand in the beach don’t dissolve in the water?
a. because the sand is insoluble with water c. because the sand is soluble with water
b. because the sand is hard and water is not d. because the sand is solid and water is liquid
5. Why it is not advisable to drink cold water when you eat fatty foods especially pork?
a. because it easily dissolves with water c. because it is hydrophilic
b. because it may block in your veins d. because it is soluble to water
6. What kind of solution wherein it contains less solute than the maximum amount it can dissolve at a
given temperature?
a. saturated solution b. unsaturated solution c. cold solution d. hot solution
7. It is a kind of solution wherein it contains the maximum amount of solute dissolved by a given
amount of solvent?
a. saturated solution b. unsaturated solution c. cold solution d. hot solution
8. Athena observed that there is a maximum amount of solute that can dissolve in a given amount of
solvent at a certain temperature?
a. Ductility b. Malleability c. Solubility d. Conductivity
9. Oreo dissolves 1 tablespoon of sugar to a cup of hot water. What is the solute?
a. sugar b. hot water c. both a & b d. no solute there
10. Refer to the situation in no.9, what is the solvent?
1. sugar b. hot water c. both a & b d. no solute there
11. What is being used as a disinfectant in hospitals and even at home?
a. hydrogen peroxide b. alcohol c. amoxicillin d. betadine
12. When there is a large amount of dissolved solute for a certain volume of solvent, the solution is
known to be ____________.
a. Homogeneous b. Heterogeneous c. Concentrated d. Dilute
13. How many mL of ethyl alcohol are in a 50 mL bottle of a 70% alcohol solution?
a. 5 mL b. 15 mL c. 25 mL d. 35 mL
14. A one peso coin has a mass of 5.5 grams. How many grams of copper are in a one peso coin
containing 75% copper by mass?
a. 4.0 g copper b. 3.0 g copper c. 2.0 g copper d. 1.0 g copper
15. Pure gold is known to have _____ karats.
a. 27 k b. 26 k c. 25 k d. 24 k
For Nos.16-20, analyse the sample situation below and answer the guide questions.
Sample Problem: Ma’am Pamela is cooking lugaw, laswa, arroz caldo, and hot choco in the school canteen.
They also sell halo-halo, buko pandan, buko juice ,juice, mineral water, batchoy, and bihon.
16. Based on the mentioned foods above, what is an example of homogeneous substance?
a. lugaw b. laswa c. arroz caldo d. hot choco

17. How about examples of heterogeneous mixtures?
a. juice b. batchoy c. hot choco d. mineral water
18. Which is NOT an example of heterogeneous mixture?
a. batchoy b. laswa c. arroz caldo d. hot choco
19. Which is NOT an example of homogeneous mixture?
a. juice b. halo-halo c. hot choco d. mineral water
20. What happens during Tyndall Effect?
a. There is scattering of light in colloid. c. There is a scattering of light outside the glass.
b. There is no scattering of light in colloid. d. There is no scattering of light outside the
glass.
For Nos.21-25, analyse the sample problem below and solve it scientifically.
Sample Problem: My mother bought a new charger for my phone but still my phone won’t work. Design a
simple experiment using the scientific method to solve the problem.
21. What is the problem all about?
22.
23. Give at least two hypotheses.
24. Choose one hypothesis and test it.
25. Generalization:
For Nos.26-35, refer to the data below. You may also refer to your periodic table. Write the symbols only.
26. Which compound melts above 1000°C and boils above 2000°C?
27. Which element is gaseous at room temperature?
28. Which substance is liquid at 30°C?
29. Which substance has the highest boiling point?
30. Which substance has the lowest boiling point?
31. Which substance has the highest melting point?
32. Which substance has the lowest melting point?
33. What is the boiling point of water?
a. 37 °C b. 40 °C c. 77°C d. 100°C
34. Which of the following statements is TRUE?
a. Ferrous sulfate cannot be broken down into simpler substances.
b. Compounds are made up of one kind of element.
c. Water is composed of more than two elements.
d. Compounds are more complex than elements.
35. Which of the following statements is TRUE?
a. Ferrous sulfate cannot be broken down into simpler substances.
b. Compounds are made up of one kind of element.
c. Water is composed of more than two elements.
d. Compounds are more complex than elements.
36. What happens to the litmus paper when the sample is an acid?
a. it turns blue b. it turns white c. it turns green d. it turns red
37. What happens to the litmus paper when the sample is basic?
a. it turns blue b. it turns white c. it turns green d. it turns red

38. Arrange the following household items: toothpaste, milk, tap water, vinegar from the most acidic to
most basic?
a. tap water, milk, toothpaste, vinegar c. milk, tap water, vinegar, toothpaste
b. toothpaste, milk, tap water, vinegar d. vinegar, tap water, milk, toothpaste
39. Arrange the household items in question number (38) from the item with the highest pH to the one
with the lowest pH.
40. Arrange the household items in question number (38) from the item with the lowest pH to the one
with the highest pH.
41. Which of the following elements is most likely ductile at room temperature?
a. Sulfur b. Nitrogen c. Mercury d. Aluminum
42. An element was subjected into flame and the acidity of the oxide formed was tested. Solution of
this oxide turned red litmus paper to blue. Which is most likely that element?
a. Chlorine b. Phosphorus c. Nickel d. Silicon
43. What is the only element that becomes liquid at normal room temperature?
a. Hydrogen b. Nitrogen c. Mercury d. Gold
For Nos.44-50, refer to the data below. You may also refer to your periodic table. Write the symbols only.
44. Which metal is liquid at room temperature?
45. Which non-metal is liquid at room temperature?
46.
47.
48. List the non-metals in order of increasing boiling point.
49.
50.
Preparedby: JESSA M. ARNADO
T1
NOTED BY:
SHERYL P. LABRADOR, Ph. D.
Principal II

Table of Specification for Firs Periodical Eaamination in Science 7
T1
NOTED BY:
Principal II
Compe ency Rem. Und. Ap. An. Ev. Crea . No. of
I ems
%
1. describe the components of
a scientific investigation;
21 22-25 5 10%
2. investigate properties of
unsaturated or saturated
solutions;
3-7 8-12 10 20%
3. express concentrations of
solutions quantitatively by
preparing different
concentrations of mixtures
according to uses and
availability of materials
13-15 3 6%
4. distinguish mixtures from
substances based on a set of
properties;
1-2 16-20 7 14%
5. recognize that substances
are classified into elements
and compounds;
26-30 31-35 10 20%
6. investigate properties of
acidic and basic mixtures using
natural indicators; and
36-37 38-40 5 10%
7. describe some properties of
metals and non-metals such as
luster, malleability, ductility,
and conductivity.
41-43 44-45 46-50 10 20%
TOTAL: 7 8 13 10 5 7 50 100%

FIRST PERIODICAL EXAMINATION IN SCIENCE 8
1. What is Newton’s First Law of Motion?
a. Law of Inertia c. Law of Momentum
b. Law of Acceleration d. Law of Interaction
2. When can you say that the force applied is unbalance?
a. If there is a change in position. c. If there is a change in speed.
b. If there is a change in momentum. d. If there is a change in direction.
3. Law of Inertia states that, “A body will remain at rest or move at constant velocity unless______”.
a. acted upon by balanced force c. acted upon by unbalanced force
b. acted upon by weak force d. acted upon by strong force
4. Who postulated the three laws of motion?
a. Sir Essac Newton b. Sir Issak Newton c. Sir Isaac Newton d. Sir Essak
Newton
5. Law of Interaction states that, “For every action, there is_______________”.
a. unequal and the same reaction c. an equal and opposite reaction
b. unequal and opposite reaction d. an equal and the same reaction
6. What is magnitude?
a. Refers to the distance covered by car. c. Refers to the size or strength of the force.
b. Refers to the weight of an object. d. Refers to the mass of an object.
7. If the standard unit of distance is m, how about the unit for magnitude?
a. N b. J c. Cal d. kCal
8. Which doesn’t describe to the forces acting on an object?
a. point of application b. direction c. line of action d. speed
9. What is the name of the straight line that passing through the point of application?
a. line of incident b. line of reflection C. line of action d. line of application
10. Interpret the graph below. What is the relationship between acceleration and force?
a. Acceleration and force are inversely proportional.
b. Acceleration and force are proportional.
c. Acceleration and force have an equal value.
d. Acceleration and force have no relationship.
11. What is the unit for force?
a. J c. N
b. kg d. m
12. What is the unit for acceleration?
a. m/s c. km/s
b. m/s₂ d. km/s₂

13. How are you going to solve problems in finding the Kinetic Energy of an object?
a. KE= mv b. KE=⅟₂ mv c. KE=⅟₂ mv² d. KE=mgh
14. How are you going to solve problems in finding the Potential Energy of an object?
a. PE= mv b. PE=⅟₂ mv c. PE=⅟₂ mv² d. PE=mgh
15. What is the unit for KE and PE?
a. J b. N c. m/s² d. km/hr²
16. A boy is stretching his rubber brand. What type of energy does the stretching of rubber band
exhibits?
a. Kinetic Energy b. Potential Energy c. Solar Energy d. Radiant Energy
For Nos.17-18, Consider the diagram below to question below:
17. ‘’
18.
19. Mechanical waves transport energy from one place to another through
a. Alternately vibrating particles of the medium c. Vibrating particles and traveling particles
b. Particles traveling with the wave d. None of the above
20. In a transverse wave, the individual particles of the medium ____________.
a. move in circles c. move parallel to the direction of travel
b. move in ellipses d. move perpendicular to the direction of travel
21. The higher the frequency of a wave,_____________.
a. the lower its speed c. the greater its amplitude
b. the shorter its wavelength d. the longer its period
22. Waves in a lake are 5.00 m in length and pass an anchored boat 1.25 s apart. The speed is a______?
a. 0.25 m/s b. 4.00 m/s c. 6.25 m/s d. 9.80 m/s
23. Energy from the sun reaches the earth through ___________
a. ultraviolet waves b. infrared waves c. mechanical waves d. electromagnetic waves
24. Which of the following objects will produce sound?
a. soft objects b. radio stations c. vibrating objects d. objects under pressure
25. Which of the following best describes a high frequency sound? It has _____________.
a. low pitch b. high pitch c. low energy d. A and C
26. Compared to a thin string of the same length and tightness a thick string produces sounds of
____________.
a. the same pitch b. lower pitch c. higher pitch d. lower then higher pitch
27. What is the other term for sound wave?
a. longitudinal wave b. transverse wave c. standing wave d. shock wave

28. Which of the following is not capable of transmitting sound?
a. air b. water c. steel d. a vacuum
29. Which of the following would most likely transmit sound best?
a. Steel in cabinet b. Water in the ocean c. Air in your classroom d. Water in a swimming pool
30. Which of the following is NOT an electromagnetic wave?
a. Infrared b. Radio c. Sound d. X ray
31. How does the wavelength of infrared (IR) compare with the wavelength of ultraviolet (UV) waves?
a. Infrared waves have longer wavelength. c. IR waves have the same wavelength as the UV
waves.
b. Infrared waves have shorter wavelength. d. IR is not comparable in wavelength with the UV
waves
32. Among all the electromagnetic waves (EM), which has the highest frequency?
a. Infrared radiation b. Radio wave c. Ultraviolet d. Gamma rays
33. ROYGBIV is the basic component of white light. Which color of light carries the most energy?
a. Blue b. Green c. Orange d. Red
34. Light is an electromagnetic wave. Which characteristic is common in all electromagnetic waves?
a. amplitude b. frequency c. speed d. wavelength
For Nos.35-40, the illustration on the right shows a lady making a noodle soup using a pan made of metal.
Use this illustration to answer the questions below:
35. How does heat travel through the pan?
A. by radiation B. by dispersion C. by convection D. by conduction
36. How does heat travel through the soup?
A. by radiation B. by dispersion C. by convection D. by conduction
37. In what direction does heat travel through the soup?
A. from top to bottom B. both A and B C. from bottom to top D. neither A nor B
38. Which of the following explains why the lady is able to hold the handle of the pan with her bare
hands?
I. The handle is made of good insulator of heat.
II. The handle has low thermal conductivity.
III. The handle has high thermal expansion.
39. A. I and II only B. II and III only C. I and III only D. I, II, and III
40. Which of the following methods of heat transfer is NOT taking place in the given situation?
A. Conduction B. Radiation C. Convection D. None of them

41. What will happen when two like charges are brought together?
A. They will repel each other. C. They will neutralize each other.
B. They will attract each other. D. They will have no effect on each other.
42. Which of the following describes the usual way by which a material can gain a positive charge?
A. By gaining protons C. By losing protons
B. By gaining electrons D. By losing electrons
43. If you comb your hair and the comb becomes positively charged, what will happen to your hair?
A. It will remain uncharged. C. It will become positively charged.
B. It will be repelled by the comb. D. It will become negatively charged.
44. Which of the following can be attracted by a positively charged object?
A. Another positively charged object. C. A neutral object.
B. Any other object. D. No other object.
45. A negatively charged rod is brought near a metal can that rests on a wooden box. You touch the
opposite side of the can momentarily with your finger. If you remove your finger before removing
the rod, what will happen to the can?
A. It will be discharged. C. It will become positively charged.
B. Its charge will remain as it was. D. It will become negatively charged.
46. Is it possible to charge an electrical insulator?
A. No, because they hinder charges from passing through them.
B. No, because insulators have no free charges in them.
C. Yes, because they can also conduct electricity.
D. Yes, because electrons can be transferred between insulators through friction.
47. A charged object is brought near a metal ball that is mounted on a rubber sheet. If the metal ball
acquired a negative charge after it was grounded momentarily, what must be the charge of the
object that was brought near it?
A. Neutral B. Positive C. Negative D. Both positive and negative
48. What is really meant when we say appliance "uses up" electricity?
A. The current disappears. C. Electrons are taken out of the circuit.
B. The main power supply voltage is lowered. D. The PE of electronsischangedintoanotherform.
49. Why do you think earthing is important in all appliances?
A. To avoid electrical shocks. C. To avoid damages of home appliances.
B. To avoid high consumption of electricity. D. To avoid short circuit.
50. What will happen if the circuit offers little or no resistance to the flow of charges?
A. There will be short circuit. C. There will be high consumption of electricity.
B. There will be explosion of fuses. D. There will be sparks in the appliances.
T1
NOTED BY:
Principal II

Table of Specification for Firs Periodical Eaamination in Science 8
I ems
%
1. describe the motion of
an object in terms of
distance or displacement,
speed or velocity, and
acceleration;
1-5 5 10%
2. differentiate quantities
in terms of magnitude and
direction;
6-7 8-9 4 8%
3. create and interpret
visual representation of
the motion of objects such
as tape charts and motion
graphs;
11-12 10 3 6%
4. infer that waves carry
energy;
13-15 16 17-18 6 12%
5. differentiate transverse
from longitudinal waves,
and mechanical from
electromagnetic waves;
19-20 2 4%
6. relate the
characteristics of waves;
21 22-23 3 6%
7. describe the
characteristics of sound
using the concepts of
wavelength, velocity, and
amplitude;
24 25 2 4%
8. explain sound
production in the human
voice box, and how pitch,
27 28 26 3 6%

T1
loudness, and quality of
sound vary from one
person to another
9. describe how
organisms produce,
transmit, and receive
sound of various
frequencies (infrasonic,
audible, and ultrasonic
sound);
31-32 2 4%
10. relate characteristics
of light such as color and
intensity to frequency and
wavelength;
29-30 2 4%
11. infer that light travels
in a straight line;
33-34 2 4%
12. infer the conditions
necessary for heat
transfer to occur;
37 35-36 38-40 6 12%
13. describe the different
types of charging
processes; and
41 44-45 43 47-48 42;46 8 16%
14. explain the importance
of earthing or grounding.
50 49 2 4%
TOTAL: 50 100%

Firs Periodical Eaamination in Au omotive Servicing 8
1. A successful task can be achieved through _____ planning and preparation.
A. careful and proper B. constant C. courageous D. seldom
2. Good preparation will boost your _____.
A. confidence B. intelligence C. skill D. weakness
3. One of the factors to consider when preparing for the task in order to avoid accident is _________.
A. materials B. place C. safety D. waste disposal
4. When the task calls for the removal of parts, use _____.
A. cleaning tools B. loosening and tightening tools C. marking tools D. measuring tools
5. Measuring is a task that needs _____.
A. cleaning tools B. cutting tools C. measuring tools D. tightening and loosening tools
6. When you want to make things done with less effort and efficiency, use _______.
A. bench work B. lights C. space D. tools
7. Possessing basic knowledge will help you __________ tools for the tasks.
A. guess B. identify and select C. presume D. replace
8. Choosing the right tool is easy but requires a lot of _____________.
A. assumption B. deduction C. practice D. presumption
9. Using incorrect tools for the job will result in _____________.
A. efficiency B. injury C. good performance D. good values
10. Basic level of competency involves _____________.
A. checking and inspection B. disassembling C. overhauling D. major job
11. Tools must be used to their maximum_________.
A. effectiveness B. elasticity C. enablement D. endurance
12. A tool that has __________ been defective creates headache and irritation.
A. frequently B. once a month C. once a year D. seldom
13. Faulty tools must be recorded, ________ and reported at once.
A. condemned B. marked C. thrown D. used
14. Tools must be set apart according to its ____________.
A. design B. serviceability C. shape D. style
15. A faulty tool once used ____________ work efficiency.
A. drives B. increases C. precedes D. reduces
16. Measurement can be applied by means of:
A. driving tool B. measuring tool C. marking tool D. punching tool
17. Precision measuring instruments cannot be squarely compared to the one used for ____ jobs.
A. electrical B. mechanical C. hit and miss D. pneumatic
18. Parts that need to be serviced must have a corresponding data of specifications ________.
A. manual B. specifications C. sequence D. symbol
19. The bolt’s mechanical strength or stretching point will easily give up and consequently break if it
exceeds too much _________.
A. data B. tensile strength C. resistance D. torque
20. A dial gauge is used to measure _________.
A. backlash B. gap C. end space D. space

21. Mechanical measuring tool like torque wrench have limited_________.
A. cost B. tolerance C. price D. weight
22. To check the ignition timing of ignition system, use _________.
A. dim light B. headlight C. flashlight D. strobe light
23. Calculation can be solved by using mathematical _________.
A. formula B. system C. strategy D. type
24. The distance travelled by a vehicle is expressed in terms of miles (mi) or _____.
A. kilometer (km) B. meter (m) C. liter (L) D. yard (yd)
25. In getting the bearing diameter or shimthickness, using _______ tool is much better.
A. divider caliper B. steel rule C. inside caliper D. vernier caliper
26. Standardizing measurement was established to avoid ___________ and deceit.
A. courage B. honesty C. dishonesty D. tax
27. The era of measurement continued to develop into a more suitable and _________ way.
A. logic B. magic C. physical D. scientific
28. 12 inches is equivalent to ____ foot.
A. 1 B. 24 C. 12 D. 36
29. When the vehicle runs, it is measured by the distance travelled in terms of mile (mi) or _______.
A. kilometer (km) B. meter (m) C. liter (L) D. Yard (yd)
30. The boiling of water in degrees Fahrenheit is ___________.
A. 2000F B. 2140F C. 2120F D. 2160F
31. Which sign represents “KEEP LEFT”?
36. Which of the following signs is indicating a high risk circumstances is present :
37.
32.
33.
34.
35.

38.
39.
40.
41.
42.
43.
44.
45.
46.
47.
48.
49.
50. How can you maintain measuring instruments?
A. Let it scatter anywhere after using. C. Allow your younger siblings to play with it.
B. Put it inside the toolbox after using. D. Left it outside the rain in order to be rusty.
“Stop cheating coz God is watching. God bless you!”
T1
NOTED BY:
Principal II

Table of Specification for Firs Periodical Eaamination in Au omotive Servicing 8
T1
NOTED BY:
Principal II
I ems
%
1.Plan and prepare for
tasks to be undertaken;
1-5 5 10%
2. Prepare and use hand
tools;
6-10 5 10%
3. Prepare a report of
malfunctioning hand tools
equipment; 11-
12
13-15
5 10%
4. Maintain hand tools; 16-17 2 4%
5. Select measuring
instrument and carry out
measurement and
calculations;
18-20 25 21-24 26-29 30
13 26%
6.Maintain measuring
instruments; and
31-36 50 7 14%
7.Analyze signs, symbols
and data;
37-40 41-46 47-49 13 26%
TOTAL: 11 14 10 10 4 1 50 100
%

LEAST LEARNED SKILLS
SUBJECT: SCIENCE 7 GRADING PERIOD: FIRST GRADING
TEACHER: JESSA M. ARNADO SCHOOL YEAR: 2017-2018
NO.OF TEST TAKERS: GRADE & SECTION: 7-FAITH
ITEM NO. SKILLS/COMPETENCY FOE RANK
T1
NOTED BY:
Principal II

NO.OF TEST TAKERS: GRADE & SECTION: 8-FAITH
T1
NOTED BY:
Principal II

NO.OF TEST TAKERS: GRADE & SECTION: 8-SSC
T1
NOTED BY:
Principal II

FIRST PERIODICAL EXAM IN SCIENCE 7,SCIENCE 8 AND AUTOMOTIVE SERVICING 8 WITH TOS

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FIRST PERIODICAL EXAM IN SCIENCE 7,SCIENCE 8 AND AUTOMOTIVE SERVICING 8 WITH TOS