6 science vi

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SCIENCE VI PANGALAN: PETSA:_______________________ PAARALAN: ISKOR: _______________________ 1. What do you call an action done without thinin!" A. #e$e% action &. 'olunta#y action (. con)ciou) action *. +u)cle) action ,. Why i) a. #e$e% action -a)te# than a con)ciou) action" A. The +e))a!e to act co+e) -#o+ ) inal co#d. &. The +e))a!e to act co+e) -#o+ the /#ain. (. The +e))a!e to act !et) lo)t *. The +e))a!e to act co+e) -#o+ the hea#t 0. ow can the di2e#ent )en)e) e#-o#+ thei# wo# at the )a+e ti+e" A. The ci#culato#y )y)te+ coo#dinate) thei# wo#. &. The ne#'ou) )y)te+ coo#dinate) thei# wo#. (. The ne#'e) ca##y +e))a!e) all o'e# the /ody. *. The ) inal co#d tae) cha#!e o- thei# wo#. 3. When you -eel hun!#y4 which a#t o- the ne#'ou) )y)te+ o#de#) you to eat" A. ne#'e cell) &. ) inal co#d (. +edulla *. /#ain 5. Why the ne#'ou) )y)te+ i) called the cont#ol cente# o- the /ody" A. It i) the la#!e)t )y)te+ in the /ody. &. It coo#dinate) all the wo# o- di2e#ent a#t) o- the /ody. (. It i) +ade u o- /illion) o- ne#'e cell) *. It ha) elect#ical i+ ul)e). 6. When a child i) a2ected with olio+yeliti)4 which o- thi) +ay #e)ult" A. /lindne)) &. ence haliti) (. a#aly)i) *. dea-ne)) 7. Why )hould you #otect you# head -#o+ )e#iou) in8u#y" A. The /#ain +ay /e a2ected. &. The head i) e% o)ed to dan!e#. (. The head i) the to +o)t a#t o- the /ody *. The /#ain i) )o-t. 9. Who a+on! the -ollowin! will ha'e +o#e -#iend)" A. a tall child&. a talati'e child (. a )ho#t child *. a chee#-ul child . So+e di)ea)e) a#e cau)ed /y !e#+) ca##ied /y hou)e$ie). ow can the)e di)ea)e) /e cont#olled" A. ;ae the )u##oundin!) clean. &. Swat the hou)e$ie). (. Sc#een all the window) *. Ru/ the )in with an in)ect #e ellant. 1<. A duc eat) co#n. A -o% eat) a duc. Which o- the+ i) a =#)t o#de# con)u+e#" A. co#n &. duc (. -o% *. +an 11. Whe#e doe) the -ood chain /e!in" A. wate# &. )oil (. lant d. )unli!ht 1,. What would ha en i- the#e we#e NO deco+ o)e#)" A. No lant) and ani+al) would die. &. The ea#th would /e =lled with dead lant) and ani+al). (. All the lant) and ani+al) would die *. The#e would /e no -e#tili>e# -o# lant). 10. Why a#e deco+ o)e#) i+ o#tant in the -ood nut#ient cycle" A. They #elea)e nut#ient) -#o+ dead o#!ani)+) /ac to the )oil. &. They clean the en'i#on+ent o- wa)te). (. They !et thei# -ood -#o+ dead lant) and ani+al). *. They a#e #e)ent in !#eat nu+/e#). 13. Which cycle +ae) nit#o!en lea'e the ai# and then /ac to it" A. o%y!en cycle &. wate# cycle c. ca#/on cycle *. nit#o!en cycle 15. O#chid) !#ow on the /#anche) o- tall t#ee) /ut do not !et -ood -#o+ the+. Thi) i) an e%a+ le o-4 A. a#a)ite &. co++en)ali)+ (. +utuali)+ *. co+ etition 16. Which cycle i) di)tu#/ed when you ut +o#e =)h than lant) in an a?ua#iu+" A. wate# cycle &. nit#o!en cycle(. o%y!en@ca#/on dio%ide cycle *. ca#/on cycle 17. Which o- the)e -acto#) ha) cont#i/uted +uch to the di)#u tion o- cycle) in an eco)y)te+" A. O'e# o ulation &. *eath) (. /i#th) *. unde# o ulation 19. What will /e the e2ect o- too +uch ca#/on dio%ide in the at+o) he#e" A. The ea#th ) te+ e#atu#e will /eco+e coole#. &. The ea#thB) Cte+ e#atu#e will /eco+e wa#+e#. (. The#e will /e +o#e #ain). *. The#e will /e +o#e cloud). 1 . Which o- the -ollowin! )tate+ent) i) t#ue" A. The inc#ea)e in o ulation i) )low. &. An inc#ea)e in o ulation +ean) an inc#ea)e in ) ace.

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SCIENCE VI

PANGALAN:PETSA:_______________________PAARALAN:ISKOR: _______________________

1. What do you call an action done without thinking?A. reflex actionB. voluntary actionC. conscious actionD. muscles action2. Why is a. reflex action faster than a conscious action?A. The message to act comes from spinal cord.B. The message to act comes from the brain.C. The message to act gets lostD. The message to act comes from the heart3. How can the different senses perform their work at the same time?A. The circulatory system coordinates their work.B. The nervous system coordinates their work.C. The nerves carry messages all over the body.D. The spinal cord takes charge of their work.4. When you feel hungry, which part of the nervous system orders you to eat?A. nerve cellsB. spinal cord C. medullaD. brain5. Why the nervous system is called the control center of the body?A. It is the largest system in the body.B. It coordinates all the work of different parts of the body.C. It is made up of billions of nerve cellsD. It has electrical impulses.6. When a child is affected with poliomyelitis, which of this may result?A. blindness B. encephalitis C. paralysis D. deafness7. Why should you protect your head from serious injury?A. The brain may be affected.B. The head is exposed to danger.C. The head is the topmost part of the bodyD. The brain is soft.8. Who among the following will have more friends?A. a tall childB. a talkative childC. a short childD. a cheerful child9. Some diseases are caused by germs carried by houseflies. How can these diseases be controlled?A. Make the surroundings clean.B. Swat the houseflies.C. Screen all the windowsD. Rub the skin with an insect repellant.10. A duck eats corn. A fox eats a duck. Which of them is a first order consumer?A. cornB. duck C. foxD. man11. Where does the food chain begin?A. waterB. soilC. plant d. sunlight12. What would happen if there were NO decomposers?A. No plants and animals would die.B. The earth would be filled with dead plants and animals.C. All the plants and animals would dieD. There would be no fertilizer for plants.13. Why are decomposers important in the food nutrient cycle?A. They release nutrients from dead organisms back to the soil.B. They clean the environment of wastes.C. They get their food from dead plants and animals.D. They are present in great numbers.14. Which cycle makes nitrogen leave the air and then back to it?A. oxygen cycle B. water cycle c. carbon cycle D. nitrogen cycle15. Orchids grow on the branches of tall trees but do not get food from them. This is an example of,A. parasiteB. commensalism C. mutualism D. competition16. Which cycle is disturbed when you put more fish than plants in an aquarium?A. water cycleB. nitrogen cycleC. oxygen-carbon dioxide cycleD. carbon cycle17. Which of these factors has contributed much to the disruption of cycles in an ecosystem?A. OverpopulationB. Deaths C. birthsD. under population18. What will be the effect of too much carbon dioxide in the atmosphere?A. The earth's temperature will become cooler.B. The earths temperature will become warmer.C. There will be more rains.D. There will be more clouds.19. Which of the following statements is true?A. The increase in population is slow.B. An increase in population means an increase in space.C. An increase in population is beneficial.D. An increase in population affects the food supply.20. Which of the following can decrease the balance in a forest ecosystem?. A. planting of many treesB. cutting of many treesC. presence of sunlightD. presence of water .21. Aling Maria wants to buy an insecticide that is not harmful to the environment. Which of the following will she look for?A. A water-based insecticideB. A powerful insecticideC. A non-biodegradable insecticideD. A stinging insecticide

22. In which state of matter are molecules moving freely? A. solid B. liquidC. gasd. colloids23. In constructing a model of a gas, how will you arrange the molecules? A one on top of anotherB. in groups of fourC. in groups of threeD. far apart24. How do we use the chemical energy in wood?A. We use it to build our homes.B. We cut it to make furniture.C. We burn it to cook our food.D. We chop it for easy use25. What energy is needed by plants to manufacture food?A. heat energy B. light energy C. chemical energy D. mechanical energy26. Which of these diseases is now being treated with nuclear medicine?A. tuberculosis B. influenza C. diphtheria D. cancer

27. - 30 identify the energy transformation that takes place in each of the following situations: Letter only. Consider the following choices:A. Chemical to MechanicalC. Electrical to light, heat and soundB. Chemical to light and heatD. Light to chemical ______27. The sun helps green plants make food in the leaves.______28. A battery makes a toy car move.______29. An electric bulb lights up.______30. Lightning appears in the sky.

From questions no. 31 and 32- consider the following choices:A. centrifugal forceC. vertical forceB. centripetal forceD. horizontal force_____31. What force pulls an object moving in a circle away from the center?_____32. What force is applied when a ball is whirling and keeps moving in a circle?

33. Which part of the earth's crust is the thinnest?A. mountains B. plains C. plateaus D. ocean floor34. What materials make up the core?A. silver and goldB. rocks and soil C. iron and nickel D. magnesium and zinc35. Which is the largest crustal plate?A. Pacific plate B. North American Plate C. Eurasian Plate D. African Plate36. Why is the Philippines prone to TSUNAMI? Because Philippines isA. surrounded by ocean.B. lies along the Ring of Fire.C. always visited by typhoon which will generate tsunami.D. the center of the diverging plate boundary.37. What is the natural sign of an approaching TSUNAMI?A. There is a tidal wave.B. There is a high tide.C. The sea recedes after an earthquakeD. There is a strong typhoon38. When is a trench formed?A. when two plates move upB. when two plates slide past each otherC. when one plate goes under another plateD. when one plate moves faster than the other plate.39. Which characteristic of stars can easily be seen?A. size B. color C. gases D. light40. About how many kilometers does light travel in one year? A. about 9 million kilometersB. about 9 billion kilometersC. about 9 trillion kilometersD. about 9 quadrillion kilometers