Science


Complete the following analogies. Write only the letter of the correct answer.

1. celery : stem ; alugbati : X
A. leaves B. flowers C. fruits

2. squash : fruit ; sugarcane : X
T. leaves U. stems V. fruits

3. carrot : root ; katuray : X
R. flowers S. stems T. fruits

4. broccoli : flowers ; rice plant : X
C. flowers D. leaves E. fruits

5. sugar : sugarcane ; bread : X
T. rice plant U. coconut V. wheat

6. rubber band : rubber tree ; door : X
O. yakal P. mango Q. maguey

7. copra : coconut ; latex : X
G. apitong H. acacia I. rubber tree

8. oil : coconut ; quinine : X
Q. eucalyptus R. cinchona tree S. lagundi



 What ailment is not cured by each plant? your answer. 

1. banaba diarrhea cough stomachache
2. eucalyptus burns asthma bronchitis
3. guava toothache diarrhea fever
4. gumamela boil burns asthma
5. lagundi diarrhea cough fever


  1. How do you keep yourself safe in handling plants? Complete the following statements. 

1. If you are allergic to plants, _____________________________________________________
___________________________________________________________________________.

2. When camping in the forests, ___________________________________________________
___________________________________________________________________________.

3. Avoid tasting fruits of plants that you are not familiar with because ________________
____________________________________________________________________________.

4. When your skin is pricked by a thorn or slashed by a sharp leaf, ____________________
____________________________________________________________________________.

5. When some plants cause rashes to appear on your skin, ___________________________
____________________________________________________________________________.

6. In case of poisoning, _____________________________________________________________
____________________________________________________________________________.



II. A. Read and analyze the following. Write the letter of the correct answer. 



  1. A. Anything that occupies space and has mass is called matter.
B. Two objects can occupy the same space at the same time.

  1. A. The amount of matter that an object has is its mass.
B. The amount of space and object occupies is its weight.

  1. A. The mass of an object is expressed in grams.
B. Bigger objects are always heavier than smaller ones.

  1. A. We use the graduated cylinder to measure the mass of irregular solids.
B. We use the platform balance to measure the mass of small objects.

  1. A. Volumes of liquids are taken using the water displacement method.
B. The weight of an object involves its mass and the strength of the pull of
gravity of the heavenly body where the object is.

  1. A. The Earth’s gravitational pull is stronger than the gravitational pull of the
moon.
B. We weigh less when we go to the moon.

  1. A. Matter is made up of very tiny particles called molecules.
B. Molecules of matter are always moving.

  1. A. Molecules of solids move rapidly back and forth that’s why they have
definite shapes.
B. Molecules of liquids slide past each other and move faster than solids
that’s why they don’t have definite shapes but they have definite
volumes.

  1. A. Molecules of liquids are very near each other.
B. Molecules of gases are compact.

  1. A. The strength of a material determines how it can withstand pressure.
B. Hard objects are easily scratched.

  1. A. The ability of solids to be hammered and made into different shapes
without breaking is called malleability.
B. The ability of solids to be drawn into very thin wires is called ductility.

  1. A. The ability of solids to be stretched or squeezed and be able to be back
in its original shape is called elasticity.
B. The ability of solids to broken into pieces when hammered is called
strength.

Science and Health III, p. 4

  1. A. The viscosity of liquids tell about how quickly the liquids evaporate.
B. The volatility of liquids tell about how easily the liquids flow.

  1. A. There are useful substances that can be harmful if not properly handled.
B. It is safe to spray insecticides at home even when there are people
around.

  1. A. Harmful substances should be kept away from children’s reach.
B. Reading the label of substances is a very important precautionary
measure in handling substances properly.

B. What special property of matter is common among the following? Write your answer
on the space before the number.

____________________________ 1. rubber band garter
____________________________ 2. gold aluminum
____________________________ 3. rock diamond
____________________________ 4. ceramic plate flowerpots
____________________________ 5. bridge filing cabinet
____________________________ 6. perfume alcohol
____________________________ 7. syrup honey

  1. Complete the table below. 

matter
Useful for -
Harmful when -
1. rock



2. muriatic acid



3. hydrogen




  1. Read and analyze the following situations. Then answer the questions briefly but substantially. 

    1. You don’t feel well. You want to take medicine to ease the pain you are feeling but you have not consulted the doctor yet. Why should you not just take medicines that are not prescribed by doctors?

____________________________________________________________________________________________________________________________________________________________



    1. It’s the end of the year and your mother asks your help to clean up. You were
asked to clean your medicine cabinet. What should you do?

______________________________________________________________________________
______________________________________________________________________________

  1. Your mother asked you to clean the bath room. You found out that there is a new cleanser that will be used. What should you do first?

______________________________________________________________________________
______________________________________________________________________________

    1. You were asked by your teacher to look for a place where you could have bonfire. What are the things that you need to consider? Why?

______________________________________________________________________________
______________________________________________________________________________


B. Answer the following. Write only the letter of the correct answer.

  1. In which material can you see through clearly?
A. clear glass window C. paper bag
B. capiz window D. shoe box
  1. Why are shadows formed?
    1. The light rays pass through transparent objects.
    2. The rays of light are blocked by an object.
    3. The source of light is artificial.
    4. Some materials reflect light.

  1. Which object is a good reflector of light?
J. wood cabinet K. brick wall L. mirror M. soap bubbles

  1. What happens when light moves from air into water?
  1. Light increases its speed.
  2. Light continues at the same speed.
  3. Light increases in speed and goes to the opposite direction.
  4. Light decreases in speed and bends.

  1. What happens when light bounces off an object?
J. It bends light. L. It reflects light.
K. It refracts light. M. It transmits light.

  1. What happens when light is trapped by matter?
A. Light is absorbed. C. Light is reflected.
B. Light is refracted. D. Light is transmitted.

  1. Which of the following groups of materials allow much light to pass through?
  1. block of wood, brick wall, cemented wall
  2. frosted glass, colored cellophane, capiz windows
  3. mirror, thin cloth, air
  4. clear water, air, eye glass

  1. Which of the following groups of materials allow a small amount of light to pass through?
  1. thin cloth, capiz windows, frosted glass
  2. paper, tin can, eye glass
  3. frosted glass, colored cellophane, brick wall
  4. capiz windows, glass wall, cemented wall

  1. What do you call the bouncing for light from a surface?
  1. refraction S. reflection T. bending U. shadow

  1. What kind of material through which light passes easily?
W. dark X. translucent Y. transparent Z. opaque

  1. What happens to light as it travels?
N. It spreads. P. It becomes brighter.
O. It is trapped. Q. It goes back to its source.
  1. How does light travel?
D. in crooked lines F. in backward motion
E. in straight path G. in zigzag lines

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