DIVISION OF CITY SCHOOLS
City of Mandaluyong
DONA PILAR C. GONZAGA ELEMENTARY SCHOOL
Special Science Elementary School
Second Periodic Test in Science & Health VI
Name:___________________________________________
Date:_______________________
Grade & Section:__________________________________
Score:________ Rating:_______
I. Read each item carefully. Write only the letter of the correct answer.
_______________1
a. crust
On what layer of the earth does man live?
b. Mantle
c. Core
d. Inner core
_______________2
.Which theory explains that the earth is made up of major plates that
once joined like a jigsaw puzzle?
a. Plate Tectonic
b. Continental Drift
c. Big Bang
d. Pulsating
_______________3 The moving energy is called:
a. chemical energy
b. Mechanical energy
c. Radiant energy d. Sound energy
_______________4 What energy has the rock found on top of the cliff?
a. electrical energy
b. Kinetic energy
c. Potential energy
d. Thermal energy
_______________5 _____________ is always produced during energy transformation.
a. Light
b. Heat
c. Rays
d. Wave
_______________6 A mango tree bears fruit. You are going to eat the fruit. What
transformation of energy took place?
a. chemical – electrical b. Chemical – mechanical c. Heat – mechanical d. Light - heat
_______________7 .
a. air pollution
b. water pollution
c. lack of food supply d. lack of water supply
_______________8 What is the effect of deforestation on our water supply?
a. reduction of water supply
b. improvement of the quality of water
c. increase in the number of watersheds
d. increase in supply of water to the homes
_______________9 Which is an example of a physical change?
a. frying fish in hot oil
c. souring of milk
b. crumpling of paper
d. burning paper
_______________10 . A dressmaker cut cloth to make a dress, what change is shown in
cutting a cloth?
a. chemical change
b. temporary change
c. physical change
d. chemical and physical
change
_______________11 . Which of the following will produce rust when it is wet?
a. a nail
b. a glass
c. a rubber band
d. a plastic spoon
_______________12 . Which are the good effects of using fertilizer in crop production?
I -increase harvest
II- pollute land III. Makes plant grow healthy IV. Land will become acidic
a. I only
b. II only
c. I and III
d. I, II, III and IV
_______________13 . Why is nitrogen cycle an important cycle in the ecosysytem?
a.. It produces oxygen needed in breathing.
b. It produces nitrates used by plants
c. it produces carbon dioxide in plants.
_______________14 .What happens to the amount of energy when the energy is passed from
one level to the next level?
a. energy increases
b. energy remains the same
c. energy decreases
d. energy is lost to ther environmenment
_______________15 .Which of the following is a biotic factor in an ecosystem?
a. soil
b. water
c. plant
d. sunlight
II. Match column A with column B. Write the letter of the correct answer only.
COLUMN A
___________________16. Orchids grow on branches of colony.
trees but do not harm the tree.
COLUMN B
___________________17. Fleas sucks blood on the
a. parasitism
skin of dog
b. predation
___________________18. The snake catches the mouse
c. mutualism
for food.
d. cooperation
___________________19. Animals give off carbon
e. commensalism
dioxide that plants use in photosynthesis while plants
f. competition
release oxygen that animals need for respiration.
___________________20. Bees gather food for their
catch weaker animals for food.
III. Identification. Identify the following.
_______________ 21. What P means organisms of the ________________27. What P are organisms in the
same kind that are living in the same area.
community that can make food such as plants and some
_______________ 22. What C means interacting
kinds of bacteria and algae.
populations living together in the same place.
________________28. What D are organisms that
_______________ 23. What C means organisms in the break down the dead bodies of plants and animals.
community that depend on plants and other animals for ________________29. What E is the study of how
food.
living things relate to each other and their
_______________ 24. What H are animals that eat
enmvironment..
plants only.
______________30.What H is an organism in which a
_______________ 25. What S are animals that feed on parasite lives on.
dead animals.
________________26. What P are strong animals that
IV. Encircle the correct answer to complete the sentence.
31. The (natural, synthetic) materials are produced artificially by chemical means.
32. The (additive, preservative) enhances the taste of food.
33. The (electron, proton) is the positively charged particle of an atom.
34. The smallest particle of matter is (atom, molecule).
35. (Matter, Material) is anything that occupies space and has weight.
36. The (additive, preservative) is used to retard or slow down the spoilage of food.
37. The (herbicides, fungicides) are chemicals used to kill unwanted weeds.
38. (Reduce, Recycle) means to lessen the materials we use.
39. (Refrigeration, Irradiation) is the process in which food is exposed to ultraviolet lamps to kill bacteria that
may be present in the surface.
40. (Nucleus, Neutron) is the center of the atom.
V. Modified TRUE or FALSE. Write TRUE if the statement is true and change the underlined word to
the correct answer if the state ment is wrong.
____________________ 41. Plants are considered the primary consumers.
____________________ 42. Oxygen is needed in the production of food in plants.
____________________ 43. A parasite depend on its host for its life.
____________________ 44. An ecosytem can exist without the abiotic factors.
____________________ 45. Forest help reduce erosion and flooding.
VI. Analogy. Write the best word that correspond to the group of words below.
46. grasshoppers : herbivore – lion : __________________________
47. ectoparasite : parasite that lives outside host body - _____________________: parasite that ives inside host
body
48. frog : _________________ - insect : prey
49. fish : salt – fruits :__________________
50. molecules are closely packed together : solid - molecules are very far apart : ______________________