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    Final 3rd Quarter Exam 2022-2023

    Uploaded by

    Karymae Akas

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    © All Rights Reserved
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    Final 3rd Quarter Exam 2022-2023

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    Karymae Akas
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    1 views4 pages

    Final 3rd Quarter Exam 2022-2023

    Uploaded by

    Karymae Akas

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 4

    Final Term Examination

    3RD Grading Period


    Science

    Name:__________________________ Grade & Section: ___________ Date:_________ Score:______

    TEST I. Multiple Choice


    Directions: Choose the BEST answer for the following questions. Encircle only the letter of the correct answer.

    1. All matter is made up of what?


    a. Atom c. Molecules
    b. Compound d. Substances

    2. The process when water vapour cools and becomes liquid and form clouds.
    a. Condensation c. Evaporation
    b. Decomposition d. Sublimation

    3. The number of protons plus the number of neutrons is called __________?


    a. atomic number c. neutrons
    b. chemical symbol d. mass number

    4. What classification of matter in which material system made up of 2 or more different substances which
    are mixed but not chemically?
    a. compound c. mixture
    b. elements d. substances

    5. At what temperature in degrees Celsius does water freeze?


    a. 0oC c. 32oC
    o
    b. 75 C d. 250oC

    6. What was Thomson’s reason for changing the model of atom?


    a. He discovered energy level c. He discovered the nucleus
    b. He discovered the electron d. He discovered the neutron

    7. Which of the following explains what will happen to the molecules when the water is heated and the
    temperature of water rises?
    a. The molecules lose less potential energy and they rest
    b. The molecules gain more potential energy and they rest
    c. The molecules lose less kinetic energy the they move faster
    d. The molecules gain more kinetic energy and they move faster

    8. In which states of matter in which particles packed tightly together in a fixed position?
    a. fluid c. liquid
    b. gas d. solid

    9. Oxygen is an example of______________?


    a. Metalloids c. Non-Metals
    b. Metals d. none of the choices

    10. Atoms having the same number of protons but number of neutrons are referred as________.
    a. charges c. shorthand notation
    b. isotopes d. mass number

    11. Which material can easily melt under the sun?


    a. candle c. ice
    b. crayon d. wax
    12. What is produced when water changes from liquid to gas at room temperature?
    a. fog c. steam
    b. snow d. water vapor

    13. What would be the result if you put an ice cream under the sun?
    a. becomes slime c. melt
    b. freeze d. run away

    14. The ice cubes in a freezer are melting which change most likely is causing the ice cubes to melt?
    a. a decrease in the mass of the ice cubes
    b. an increase in the mass of the ice cubes
    c. a decrease in the temperature inside the freezer
    d. an increase in the temperature inside the freezer

    15. Examine the following sequence of phase changes: Solid LiquidGas. Would we need to add or
    remove heat energy?
    a. Add heat energy c. both a and b
    b. Remove heat energy d. neither a and b

    16. Which elements arranged correctly from most reactive to least reactive?
    a. Copper, Calcium, Potassium, Magnesium
    b. Calcium, Potassium, Magnesium, Copper
    c. Magnesium, Copper, Potassium, Calcium
    d. Potassium, Calcium, Magnesium, Copper,

    17. ______________ is the difference between the mass number of an atom and atomic is?
    a. electron c. neutron
    b. nucleus d. proton

    18. Number of protons and electrons is ___________ as the number of an element.


    a. different c. same
    b. not the same d. none of the choices

    19. When Potassium react with oxygen, what is the color of its flame?
    a. yellow c. lilac
    b. green d. violet

    20. What is the most common precipitation in the Philippines?


    a. crystal c. rain
    b. hail d. snow

    21. If there’s no superscript at the right, it means that the charge of an element is_______?
    a. 0 c. 3
    b. -1 d. +4

    22. Select the incorrect statement from the following option.


    a. Corrosion causes contamination of product
    b. Corrosion causes leakage of toxic liquid or gases
    c. Replacement of corroded equipment is time-consuming
    d. Corrosion increases the electrical conductivity of metals

    23. Figure above shows example of element. What is the mass number of Gold?
    a. 79 c. Au
    b. 196.99 d. None of the choices
    24. Water (H2O) is an example of ________.
    a. compound c. element
    b. heterogeneous mixture d. mixture

    25. Which classification of element that is good conductor of electricity?


    a. metalloids c. non- metals
    b. metals d. semi-metals

    TEST II. True or False


    Directions: Write BABAE if the statement is true and write LALAKI if the statement is false.

    _______________26. The word Atoms comes from the Greek word “atomos” means “indivisible”.
    _______________27. The process of changing liquid into solid is called melting.
    _______________28. Elements that are sonorous or make a bell-like sound when hit are called Non-metals.
    _______________29. The reactivity series of metals are arranged from least reactive to higher reactive.
    _______________30. The atomic number tells you what the element is.
    _______________31. Electron is located at the center of the atom.
    _______________32. Protons carries a positive charge.
    _______________33. Anything that occupies space that has mass and volume referred as Reactivity.
    _______________34. Chocolate melted when put in the refrigerator
    _______________35. Electrons are very much lighter, to the point that it’s mass is not significantly contribute to
    the mass of the entire atom.

    TEST III. Matching Type


    Directions: Match the following proponent in column A with the correct picture of Models of Atoms in column B.
    Write only the LETTER of your answer before the number.

    COLUMN A COLUMN B

    __________36. Niels Bohr


    a
    __________37. John Dalton
    __________38. Ernest Rutherford
    __________39. J.J. Thomson
    __________40. Erwin Schrödinger
    b

    e
    TEST IV. Fill in the Blanks
    Directions: Fill in the table of the appropriate answers. Show your solution of number of mass and number of
    neutrons on the space provided BELOW.
    41-45.
    Shorthand Atomic Mass Number of Number of Number of
    Notation number number protons electrons neutrons Charge
    27 +3
    Al 13 27 13 13 +3
    13

    Og 118 118 118 176 0


    118
    127 +1
    I 53 127 53 74 +1
    53
    294 -1
    P 31 294 31 31 263
    31
    293 -2
    Lv 116 293 116 116 -2
    116

    TEST V. Draw and Labelling


    Directions: Draw the model of Oxygen atom and label its part. Use the legend provided.
    46-50
    Legend:
    8 electrons
    8 protons
    8 neutrons

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