Learning Strand 2 – SCIENCE – HIGH SCHOOL
1. Mang Berto's rice fields are infested by rats. He was advised to use any of the following techniques.
I. Use pesticide (rodenticide)
II. Use nets in catching rats.
III. Raise cats to catch rats
IV. Burn the whole field after each harvest season.
Which of the following can be effective in getting rid of the cats without harming farm insets and environment?
A. II ONLY
b. II and IV
c. III only
d. III and IV
2. The population of an endangered species can be increased by breeding in captivity of the remaining individuals. However, this technique may also lead to species extinction. Which of the following is the negative effect of this breeding?
a. Breeding over a short period of time produces different species.
b. Breeding over a short period of time increases beneficial mutation.
C. BREEDING OVER A SHORT PERIOD OF TIME REDUCES GENETIC DIVERSITY.
d. Breeding over a short period of time increases fertility.
For item 3 – 4: Study the menstrual feedback mechanism below.
I. Progesterone/Testosterone
II. Follicle Stimulating Hormone
III. Positive Feedback Mechanism
IV. Negative Feedback Mechanism
3. What regulates the secretion of hormone from an endocrine gland?
A. I ONLY b. II and IV c. IV only d. I and III
4. What hormone stimulates the ovaries to secrete estrogen?
a. III and IV B. II ONLY c. I and II d. I only
5. Which of the following processes involve the teamwork between the respiratory and circulatory system?
I. Diaphragm enables air to come in and out of the body by contracting and relaxing.
II. Villi in the small intestine absorb nutrients, which are then transported to different body parts.
III. CARBON DIOXIDE PRODUCED BY CELLS ENTERS THE CAPILLARIES AND IS TRANSPORTED TO LUNGS.
IV. Red blood cells get oxygen and distribute it to different body parts.
a. I only b. I and III C. III ONLY d. IV only
For item 6, study the lifestyle of Juana and Pedro shown below:
JUANA
Diet: fruits, vegetables, meat
Drinks: purified water
Hobby: reading
Sleeping pattern: 7 – 8 hours
PEDRO
Diet: poultry meat, Baguio vegetables
Drinks: fresh fruit juice
Hobby: playing computer games
Sleeping pattern: 8 – 10 hours a day
6. Which of the following diseases can be acquired by Pedro?
a. acidosis B. marasmus C. HYPERTENSION D. kwashiorkor
7. Electric cables are generally made of copper. Which of the following properties of copper makes it suitable electric cable?
I. CAN BE FLATTENED
II. shiny
III. high density
IV. GOOD CONDUCTOR
a. I only B. I and IV c. III only d. II and III
For item 8, study the properties of two compounds presented in the table.
COMPOUND A
Dissolve in water
Does not easily dissolve in alcohol
Exists as solid at room temperature
Conducts electricity when dissolve in water
Compound B
Does not dissolve in water
Dissolve in alcohol
Exists as liquid or gas at room temperature
Does not conduct electricity when dissolve in water
8. Which set of properties reflect that of table salt?
a. Compound B
b. Both Compound A and B
C. COMPOUND A
d. Table salt’s characteristics is in between that of Compound A and B
For item 9, study the characteristics of the two volcanoes.
VOLCANO A
Height: about 8,000 feet
Shape: tall and steep
Eruption: has recently erupted
VOLCANO B
Height: about 8,000 feet
Shape: tall and broad
Eruption: had erupted in the distant past
9. Which volcano is active?
a. Both volcanoes are inactive
B. VOLCANO A
c. Volcano B
d. Both Volcano A and B
10. Which of the following is TRUE about constellations?
a. The earth revolves around the constellation.
B. CONSTELLATIONS STAY ON THE SAME PLACE ON THE SPACE.
c. Constellations revolve around the sun.
d. The sun revolves around the constellation.
11. The following observations were noted at different hours during the night.
A – Stars moved from east to west across the sky
B – Stars set along a diagonal from south to north
C – Stars traced counter clockwise, others, centered on a point near the North Star (Polaris)
Which of the following statement is correct?
a. Some starts move across the sky over the night time while others don’t.
B. STARS DO NOT MOVE AT ALL. IT IS the EARTH THAT IS MOVING.
c. Stars move from different patterns as the earth revolves around the sun.
d. Stars, like sun, rise in the east and set in the west.
12. Planets, moons, and stars are all heavenly bodies. Which of the following makes a star different from the other heavenly bodies?
a. size b. rotation of axis C. LIGHT PRODUCTION d. mass
For item 13, study the convection currents in the mantle as illustrated below.
I. MOVEMENT OF CRUST
II. FORMATION OF VOLCANO
III. EARTHQUAKES
IV. Floods
13. What are the effects of convection currents A and B on the crust?
a. II and III b. I and III C. I, II, and III d. II, III and IV
For item 14, read the given case.
A typical fire extinguisher tank contains carbon dioxide (CO2) under high pressure. When CO2 is released and directed to the fire, it attacks the fire by displacing the oxygen in the combustion process.
14. What is it that CO2 should be under high pressure?
A. SO THAT CO2 CAN MOVE VERY FAST WHEN RELEASED.
b. To decrease the temperature
c. So that CO2 can expand very fast and cool the fire when released.
d. To increase the temperature.
15. Which of the following evidence support the Plate Tectonic Theory?
I. Earthquake and volcanic eruptions
II. MAGNETIC FIELD ORIENTATION IN LAYERS OF ROCKS
III. FOSSILS FOUND IN BIG ROCKS LOCATED FAR APART
IV. Different shape of coastlines of different continents
a. III and IV B. II and III c. I and II d. I and IV
For item 16, study the illustration below.
I. PRODUCE SPERMS ANG MALE HORMONES
II. It is a tube attached to the testes
III. It carries both urine and semen
IV. It is a loose bag of skin divided into two containers of testicles
16. Which of the above statements describe the testes?
A. I ONLY b. IV only c. III and IV d. I and II
For item 17 – 18, study the diagram below;
I. Convection currents in this layer make the plates move.
II. Metals in this region are melted due to high temperature
III. Metals in this region are squeezed tight due to great pressure
IV. Consist of the crust of the upper mantle
17. Which of the statement above describe the mantle?
a. I only B. I and IV c. II only d. II and III
18. Which layer is described by statement III?
a. mantle b. outer core C. CRUST d. inner core
19. In which of the following regions do earthquakes frequently occur?
a. Far away from the Pacific Rim of Fire
b. Along the east coast of North and South America
C. IN NARROW BELTS AROUND THE WORLD
d. Along the west coast of Asia
20. Which of the following is TRUE concerning earthquakes and volcanoes?
a. Volcanoes form away from earthquake zone
B. EARTHQUAKES USUALLY OCCUR IN THE SAME LOCATION AS VOLCANOES.
c. The occurrence of earthquakes and volcanic eruption are two different phenomena.
d. Earthquakes occur with less volcanic activity.
21. Which of the following evidence support the Plate Tectonic Theory?
I. Fossils found in big rocks located far apart.
II. Different shape of coastlines of different continents
III. Magnetic field orientation in layers of rocks
IV. Earthquake and volcanic eruptions
a. I and II
B. I and III
c. III and IV
d. II and IV
For Item 22, analyze the information about the two families given below.
Family A:
No. of children: 5
Combined monthly net earnings: Php 20,000.00
Daily budget: Php 500
With other family members: 1
Family B:
No. of children: 10
Combined monthly net earnings: Php 20,000.00
Daily budget: Php 500
With other family members: 2
22. Which of the families live a better life?
a. Family B because they have more members to help one another.
B. FAMILY A BEACUSE THEY HAVE LESS NUMBER OF MOUTH TO FEED.
c. Family B because they have more than exemption in their combined income at the end of the year.
d. Both families live a better life because they have the same monthly net income.
For item 23 – 24, read the given case.
Walking a short distance from home to office daily, Dino sweats a lot so he always brings towel.
23. Which of the following explains the sweating considering that he is a normal boy?
a. His body becomes strong by walking.
b. His body becomes fatigued.
C. HIS BODY RELEASES HEAT.
d. He needs cool air.
24. Does his sweating help him?
a. Yes, because his body releases heat.
b. No, because sweating leads to bad odor.
c. Yes, because excess water from his body is released as sweat.
d. No, because water is lost from his body which will result to skin dryness.
25. Which of the following occurs when two tectonic plates move away from each other?
I. Formation of volcanoes
II. Occurrence of earthquakes
III. Volcanic eruption
IV. Mountain formation
a. I and III only
b. I, II, and IV
c. II, III, and IV
d. I and II only
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