GRADE IV

Science Quiz

Easy Round

1.There some muscles which are

both voluntary and involuntary.Which of the following belongto that kind?

A. intestines B. heart and lungs C. arms and legs D. eyelids

Answer: D eyelids

2. Dogs give birth to puppies; cats give birth to kittens. This process by which animals produce other animals of their kind is called ___________.

A. reproduction B. germination C. metamorphosis D. pollination

Answer: A Reproduction

3. There are some organisms having both organs appearing in different parts of the body. Which of the following exhibits hermaphrodism?

A.snake B.earthworm C.chickenD.fly

Answer: B

4. What kind of exercise helps the heart and lungs?A. aerobicB. Bowling C. Weight liftingD. anaerobic

Answer: A

5. If you are exposed to garbage, what kind of illness would you probably get?

A.heart failure

B.asthma C.goiter D.nose bleed

Answer: B

6. Which of these minerals is needed by your bones?

A. CalciumB. proteinC. carbohydratesD. vitamin A

Answer: A

7. It allows you to bend your knees.

A. muscles B. joints C. femur D. tendons

Answer: B

8. What do you call the imaginary line on which the Earth turns and which runs from pole to pole?

A. equator B. longitudeC. latitude D. axis

Answer: D

9. What process does an animal undergo when the sperm and egg cell unite?A. Fertilization B. reproductionC. Hatching D. life cycle

Answer: A

10. What do you call the spines and thorns of some plants which they use to protect themselves from danger?

A. enemies of plants B. plant disease C. adaptive structure D. camouflage

Answer: C

Average Round

1. The contraction and relaxation of muscles cause bone movement. A pair of muscles works against each other. While one contracts the other relaxes. What happens to the muscles when it contracts?

A. It becomes long and thick. B. It becomes short and thin. C. It becomes long and thin. D. It becomes short and thick.

Answer: D

A. 23 degrees C. 23 ¾ degrees

B. 23 ½ degree D. 24 degrees

2. Below shows that Earth tilting of the Earth on its axis. How many degrees does Earth tilts?

Answer: B

3. It is a mechanical method of soil erosion control. This is good on houses or roads by the mountain side or hillsides. It also prevent landslides. This process is called_________.

A. Strip cropping B. Terracing C. Riprapping D. Crop Rotation

Answer: C

4. What is the main cause of tides? A. Earth’s gravity B. Moon’s gravity C. Sun’s gravity D. Earth’s rotation

Answer: B

5. Which of these situations shows storm signal no. 2?

A. Classes in pre-school levels in all public and private schools in affected communities are automatically suspendedB. Classes in preschool, elementary and high school levels in all public and private schools in the affected areas are automatically suspendedC. Classes in all levels are automatically suspended in affected communitiesD. Postponement of classes and work in government offices

Answer: B

6. What kind of disease is given by mice?A. RabiesB. dengueC. Malaria D. bubonic

Answer: D

7. When does evaporation take place?

A.When water is cooled

B. when water is frozenC. When water is heated D. when water is filtered

Answer: C

8. What do we call the scientist that study about the soil?

A. MeteorologistB. GeologistC. PedologistD. Psychologist

Answer: B

9. In which liquid is nail polish soluble?

A. AlcoholB. AcetoneC. OilD. water

Answer: B

10. Man interferes with the balance of nature when he _______.

A.pollutes air and water

B.disposes his garbage properlyC. practices selective logging D. helps control overpopulation by practicing family planning

Answer: A

Difficult Round

1.Skeletal muscles are attached to the bones by rubber-like cords called tendons. Tendons are stretched as the muscles and

bones move. What are the tough fibers of proteins in tendons called?

Write down your answer.

Answer: Collagen

2. Muscles and bones work like levers. If the bone serves as the lever, _________ act as the fulcrum.

Answer: Joints

3. The measurement of the hotness and coldness of the air is called ______________

Answer: Temperature

4. When do tides occur?

Answer: When the moon pulls the Earth.

5. Objects that form shadows and covers the light that hit them is called _____________.

Answer: Opaque

6. _________________ occurs at the first and third quarter of the moon.

Answer: Neap tide

7. How many natural satellites move around Earth?

Answer: One

8. What is the largest asteroid in the solar system?

Answer: Ceres

9. What makes your palm hot when you rub them together?

Answer: Friction

10. What instrument is used to measure wind speed?

Answer: Anemometer

Clincher

1. A mother hen sits on her eggs to provide warmth needed for the eggs to hatch. What is this process called?

Answer: Incubation

2. When mayonnaise is mixed with water, the mixture becomes cloudy and the particles remain suspended. Mayonnaise is what kind of mixture?

Answer: colloid

3. How many Earth days are equivalent to one day on the moon.

Write down your answer……

Answer: 29 Earth days

4. How do animals and humans release or give off water particles?

Answer: Perspiration

5. There are different species of animals and plants living together in the same environment. How is this organization classified?

Answer: Community