Republic of the Philippines

Department of Education
Region III – Central Luzon
Schools Division of Angeles City
Northville 15 Integrated School
Northville 15, Cutud, Angeles City

THIRD QUARTER EXAM IN SCIENCE 8

S.Y 2022-2023

GENERAL INSTRUCTIONS: Read each item carefully. Use your answer sheet to shade the letter of the correct
answer.
1. It is anything that occupies space and has mass.
A. Atom B. Matter C. Molecule D. Volume

2. It is a particle of matter that came from the Greek word for indivisible and it can also be referred as the basic
unit of matter.
A. Atom B. Matter C. Molecule D. Volume

3. It is a particle consisting of two or more atoms combined in a specific arrangement.

A. Atom B. Matter C. Molecule D. Volume

4. It is the measure of the space occupied by an object.

A. Atom B. Matter C. Molecule D. Volume

5. When you are observing a sample of matter you are focusing on a particular characteristic. What term refers to
the characteristics that describe a sample of matter?
A. Color B. Mass C. Property D. Volume

6. Which of the following is NOT a matter?

A. Heat B. Smoke C. Sugar granules D. Air inside the ball

7. Leslie, added 20 ml sugar on a 50 ml water and he mixed it thoroughly until all the sugar dissolves. What do you
think will be the resulting taste of the mixture?
A. Hot B. Sour C. Sweet D. Tasteless

8. Which of the following sets are samples of liquid?

A. Car, gasoline, radio C. Ice, oxygen, stone
B. Crayon, ice, water D. Milk, oil, water

9. When you inflate a balloon with air, it takes the shape and volume of the container. Why do gases like air do
NOT have definite shape and volume?
A. Because gases are free to move slowly. C. Because gases do not have attractive forces
B. Because gases have weak attractive forces. D. Because gases have strong attractive forces

10. Your teacher asked you to compose both chemical and physical changes of rice grains. To show your teacher
that you can make both physical and chemical change on rice, you choose to:
I. Cook the rice grains.
II. Burn the rice grains into ashes.
III. Grind the rice grains into powder. And cook it as porridge (lugaw).
IV. Roast the rice grains. Grind it and pour water on it to make a coffee.

A. I B. II C. III D. IV
11. Which statement justifies that matter is made up of tiny particles that are moving all the time?
A. The smell of food being cooked in the kitchen reaches us even from a considerable distance.
B. The particles of a liquid are closer to each other, that’s why it is hard to push them together.
C. Nothing happens when you dissolve a crystal of potassium permanganate in water.
D. Particles in solid don’t move.

12. How would you classify the difference between weight and mass?
A. Mass is quantifiable and measurable while weight isn’t.
B. Scientists measure mass with balance and weight with the use of scales.
C. The mass of a body is the amount of matter in it, whereas the weight of a body is the measurement of
gravitational force acting on it.
D. The mass of an object changes from location to location because of the effects of gravity. An object has
the same amount of weight no matter its location.

13. Which of the following statements supports the behavior of the particles of a solid?
A. Completely unmoving C. Have large spaces in between.
B. Have a weak attractive force D. Vibrating at a fixed position.

14. What is the process by which a liquid is changed into a solid?

A. Condensation B. Evaporation C. Freezing D. Melting

15. What is the process by which a solid is changed into liquid?

A. Condensation B. Evaporation C. Freezing D. Melting

16. What is the process by which a liquid is changed into a gas?

A. Condensation B. Evaporation C. Freezing D. Melting

17. What is the process by which a gas is changed into liquid?

A. Condensation B. Evaporation C. Freezing D. Melting

18. What will happen to the kinetic energy of the particles of matter if the temperature increases?
A. Decrease B. Increase C. Remain D. Nothing happens.

19. What will happen to the kinetic energy of the particles of matter if the temperature decreases?
A. Decrease B. Increase C. Remain D. Nothing happens.

20. Which of the following phase changes needs a decrease in temperature and kinetic energy?
A. Liquid to gas B. Liquid to solid C. Solid to gas D. Solid to liquid

21. What happens to the temperature and kinetic energy of a substance when it undergoes a change of state from liquid
to solid?
A. Both decreases C. Both remain the same.
B. Both increases D. One either increases or decreases.

22. Shiela did a lot of things during her vacation. Which of the following situations that Shiela did would result to phase
change?
A. Cleaning her room C. Making an ice candy
B. Hanging out with her friends D. Opening a tin can

23. Which of the following phase change is the result of drying wet clothes?
A. Condensation B. Evaporation C. Freezing D. Melting

24. In evaporation, what is the relationship between temperature and kinetic energy?
A. Constant C. Inversely proportional
B. Directly proportional D. No relationship at all

25. The water cycle involves two processes, evaporation and condensation. Why do you think evaporation is important
to the water cycle?
A. Evaporation is important in water cycle because it forms the cloud in the sky.
B. Evaporation is important in water cycle because it is the first step in the process.
C. Evaporation is important in water cycle because it makes dew and seeps in a grass.
D. Evaporation is important in water cycle because it is the one that makes water falls from the sky.
26. Which statement supports how condensation happens.
A. Condensation happens on the surface of a liquid at any temperature.
B. Condensation happens when there is a change of phase from liquid to solid.
C. Condensation happens when there is a change of phase from a gas to a liquid.
D. Condensation happens when there is a change of phase from a liquid to a gas.

27. Which of the following subatomic particles determines the identity of an atom?
A. Electron B. Neutron C. Nucleons D. Proton

28. An atom of an element is electrically neutral because the number of protons is equal to the number of _______.
A. Electron B. Neutron C. Nucleons D. Proton

29. How do we call the protons and neutrons that are found together in the nucleus?
A. Electron B. Neutron C. Nucleons D. Proton

30. This is one of the subatomic particles that have a neutral charge.
A. Electron B. Neutron C. Nucleons D. Proton

31. What was Thomson's atomic model called?

A. Model of the atomic theory C. Solar system model
B. Plum pudding model D. Spherical model

32. Which particles have approximately the same size and mass?
A. Protons and neutrons
B. Electrons and protons
C. Neutrons and electrons
D. None because all are different in terms of size and mass.

33. Which of the following statements are TRUE about the subatomic particles?
I. The charge of an electron is opposite to the charge of a proton.
II. Proton has approximately the same mass as a neutron.
III. Electrons and protons are located within the nucleus.
IV. The mass of an atom is concentrated in the nucleus.
A. I, II, and III C. I, III, and IV
B. I, II, and IV D. I, II, III, and IV

34. The neutral atoms of all of the isotopes of the same element have ________
A. A different number of protons C. The same mass numbers.
B. Equal number of neutrons D. The same number of electrons

35. Element A has a mass number of 100 while element B has an atomic number of 118. What will be the number
of electrons of element B?
A. 59 B. 60 C. 118 D. 120

36. How many protons, neutrons and electrons are in the neutral atom of Cl? (Z=17, A=35)
A. 17 protons, 15 neutrons and 17 electrons C. 17 protons, 17 neutrons and 18 electrons
B. 17 protons, 17 neutrons and 17 electrons D. 17 protons, 18 neutrons and 17 electrons

37. Hydrogen has one (1) proton and electron. How many neutrons does Hydrogen have?
A. 0 B. 1 C. 2 D. 3

38. What choice would you have made if your teacher asked you to correct this illustration +
k
A. Add a negative sign outside the nucleus because it is an electron of Hydrogen atom. +
B. Remove the circle at the center that has no positive or negative sign because it is useless. k
C. Change the positive sign into a negative sign of the circle inside the nucleus that serves as electron.
D. Make the positive sign into a negative sign of the circle outside the nucleus because it is an electron.

39. An English scientist who noticed that the properties of elements repeat with every eighth element. He
attempted to arrange the elements using the law of octave as a basis in 1864. Who was he?
A. Henry Moseley B. John Newlands C. Lothar Meyer D. Rutherford
40. Who organized the order of elements in the periodic table according to their atomic number?
A. Henry Moseley B. John Newlands C. Lothar Meyer D. Rutherford

41. The periodic table is arranged in a series of columns called __________.

A. Group B. Period C. Row D. Team

42. Which of the following refers to the horizontal row of numbers from top to bottom of the periodic table
A. Group B. Period C. Row D. Team

43. What are Group 1 elements known as?

A. Alkali metals B. Halogens C. Noble gas D. Transition metals

44. How are elements arranged in the Periodic Table?

A. Decreasing atomic mass C. Increasing atomic mass
B. Decreasing atomic number D. Increasing atomic number

45. In which period and group is Silver (Ag) located?

A. Period 2, group 1 C. Period 4, group 2
B. Period 3, group 8 D. Period 5, group 11

For questions 46-48, use the list of elements in decreasing order of reactivity as shown in the box.
K, Na, Ca, Mg, Zn, Fe, H, Cu
46. Which statement about the reactivity of these metals is correct?
A. Zinc is less reactive than Iron. C. Copper is more reactive than Potassium
B. Sodium is less reactive than Calcium. D. Calcium is more reactive than Magnesium.

47. Based on the reactivity series, which metal is the most reactive?
A. Copper B. Lithium C. Sodium D. Zinc

48. Which of the following sets of metals is arranged according to increasing reactivity?
A. K, Mg, Na, Ca C. Mg, Na, Ca, K
B. Mg, Ca, Na, K D. Na, Ca, Mg, K

49. Which among the following statements supports the view of elements of the same group have similar chemical
properties?
A. They have different atomic masses.
B. They have one electron in the outer shell.
C. They have a different number of electrons in the outermost shell.
D. They have the same number of electrons in the outermost shell.

50. Which of the following statements proves that if the metal is more reactive, the metal in the compound replaces the
less reactive metal?
A. The less reactive metal repels the more reactive metal from its compound.
B. The more reactive metal bonds with the less reactive metal from its compound.
C. The less reactive metal pushes out or displaces the more reactive metal from its compound.
D. The more reactive metal pushes out or displaces the less reactive metal from its compound.

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