Republic of the PhilippinesDepartment of Education

Region V – BicolDIVISION OF CAMARINES NORTE

D a e t

SCIENCE AND HEALTH IIITHIRD PERIODICAL EXAMINATION

Name ______________________ Grade and Section ___________School______________________ Date_______________________

Direction: Read each question carefully. Choose the letter of the correct answer and write it on the blank provided before each number.

1. Why is soil an important part of the earth?A. Plants grow and animals live on soil earth.B. Soil covers the most part of the earth.C. Soil is the home of man and animals.D. All of the above.

2. What kind of soil is made up of fine and loose particles?A. sandy soil C. loam soilB. clay soil D. silk clay soil

3. Which of the following is the kind of soil that can be used in building houses, schools and tall buildings?

A. silt B. sand C. loam D. clay

4. Soil differs in color. The soil that, contains iron is reddish in color while the soil that is rich in salt is color _________.

A. white B. red C. black D. gray

5. Clay soil holds more water and sticky, while loam soil absorb and ________.A. hold enough water C. water dries up very quickB. water move very quickly D. water become dry

6. Which soil is best for planting?A. loam soil C. sandy soilB. clay soil D. silt soil

7. Which layer of soil is made up of sand silt and clay and decayed matter?A. top soil C. bed rockB. subsoil D. clay soil

8. The soil layer that contains solid rock is the _______.A. parent material/ bed rock C. top soilB. subsoil D. none of these

9. The soil has 3 layers topsoil, subsoil and bedrock. Which of the following is a description of subsoil?

A. Materials that are slightly broken and later form topsoil.B. Solid rockC. Made up of sand silt and clay.D. Richest layer of the soil.

10. People use soil for _______.A. planting cropsB. building houses and bridgesC. making bricks, glasses and sand paperD. all of the above

11. How does the soil help the people?A. Plants grow in the soil that serve as food for manB. Insects grow in the soilC. Man and animals eat soilD. Aquatic animals live in the soil

12. When soil has plenty of pesticides and garbage the soil productivity become ________.

A. more fertile C. healthyB. fit for planting D. unfit for planting

13. How will you show care and concern for the soil?A. C.

B. D.

14. These are different sources of water, which one is not?A. river C. deep wellB. water dispenser D. dams

15. Which of the following sources of water is fresh and potable?A. oceans and seasB. rivers and lakesC. underground and damsD. ponds and brooks

16. Water that found beneath the ground is the best. Why?A. It is source of drinking waterB. It is source of food in the urban areaC. It is naturalD. It is the source of food

17. Why is water very useful?A. People, animals and plants need water in order to liveB. We can live without waterC. All animals live in waterD. All of the above

18. Which may be used for cleaning the house and flushing the toilet?A. recycled water C. sterilized waterB. mineral water D. polluted water

19. How pollution affects water?A. It can kill marine life.B. It can kill marine plants.C. It makes the water dirty.D. All of the above

20. Which of the following causes water pollution?A. Bathing animals and washing clothes in the riverB. Throwing waste and used oil in the bodies of waterC. Throwing garbage in the riverD. All of the above

21. Polluted water decreases the oxygen content of water and may harm _________.

A. aquatic life C. treesB. animal and people D. all of the above

22. Why should water be taken care of by human?A. to prevent us from getting sick C. to make us beautifulB. to have move food D. to make us healthy

23. The following are practices on how to care and show concern for water, which one is not.

A. Close the faucet when not in use.B. Keep running the water from the faucet while brushing teeth.C. Use pressure host in watering plantsD. Recycle water in clearing the can

Relate the condition of the day with the temperature reading.

Study the chart

Day Temperature ReadingMonday 27°cTuesday 27°c

Wednesday 30°cThursday 29°c

Friday 32°c

24. On what day is the warmest?A. Thursday B. Monday C. Wednesday D.Friday

25. On what days was the temperature the same?A. Monday and TuesdayB. Tuesday and WednesdayC. Tuesday and ThursdayD. Wednesday and Friday

26. When leaves are moving and children are playing kites, what do these tell about the weather?

A. It is a windy day C. It is cloudy dayB. It is a rainy day D. It is a gloomy day

27. Which of the following symbols for shy cones tells that the weather is rainy?A.

B.

C.

D.

28. Why are heavy rain and typhoons not good?1. They can destroy lives and properties2. Plants produce harvest3. They can cause landslide and floods

A. 1 and 2 C. 1 and 3 B. 2 and 3 D. 2 only

29. ______ bury themselves at the bottom of the pond during cold months.

A. Dogs B.Ducks C.Frogs D.Cats

30. Birds and fowls may lose their feathers during _______.A. cold weather C. stormy weatherB. warm weather D. gloomy weather

31. Our skin can suffer from _______ sunny weather.A. Cholera B. Colds C. Influenza D. Prickly heat

32. Mang Kardo is a farmer. To protect him from over exposure to the sunlight, he needs to wear _________.

A. Hat B. Raincoat C. Slippers D. Camiseta

33. Samantha needs a lot of Vitamin C because she has colds. Which foods are good for her?

A. Ice cream and candiesB. Guavas and fruit juicesC. Mais and fishD. Cake and spaghetti

34. When the sun is shining brightly and there is no wind, the air gets ________?

A. cool B. stormy C. warm D. weak

35. When the sky is cloudy, the clouds block the heat of the sun, the air becomes _______.

A. hotter B. cooler C. faster D. Slower

Study the Chart

Time Temperature12:00 pm 30°c2:00 pm 30°c4:00 pm 29°c6:00 pm 27°c

36. At what time of the day is the coolest?A. 12:00pm B. 2:00pm C. 4:00pm D. 6:00pm

37. Long exposure of the skin to sunlight may cause ______?A. sunburn B. skin itchy C. tinea flava D. boil

38. Looking at the sun for a long time may cause a person to be ________?A. deaf B. blind C. cross-eyed D. farsighted

39. Mary’s plants are overexposed under the sun. What do you think will happen to the plants?

A. dry up C. become healthyB. grow faster D. remain the same

40. Why do we need to drink lots of water on very hot days?A. To replace the water and dried upB. To increase the body tempC. To reduce ones weightD. To maintain good posture