Grade 6 science quiz bee

GRADE VISCIENCE

QUIZ

EASY ROUND

1.Some plants grow better if bone meal (ground-up bones) is spread around their roots. What does bone meal supply to the plants that makes them grow better?

A. energyB. mineralsC. vitaminsD. water

Answer:

B

2. Sensory messages are taken to the brain by ____________.

A. arteries and veinsB. arteries and

hormonesC. nerve and

hormonesD. muscles and veins

Answer: C

3. Alexander Fleming noticed that bacteria

growing on a plate of agar did not grow next to

a mold that was growing on the same plate. He

wrote in his laboratory report “The mold may

be producing a substance that kills bacteria”.

This statement is best described as _________.

A. an observation B. a hypothesis C. a generalization D. a conclusion

Answer: B

4. Why do stars seem to twinkle?

A.They are too hotB.Their size and color varyC.They are covered with clouds

D.Light bends as it passes through layers of the atmosphere

Answer: D

5. The oxygen - rich blood from the heart flows to the largest artery known as A. superior vena cava

B. inferior vena cava

C. coronary arteryD. aorta

Answer: D

6. What is the most important function of the blood?

A. Collects food nutrients and oxygen from the body.B. Carries food nutrients and oxygen to all parts of the body.C. Regulates the rise of the body temperature.D. Carries impurities to the cells.

Answer: B

7. A beaker was filled with water up to 40 mL mark. A small stone was slowly lowered into the beaker and it was observed that the level rose to 45 ml. What does the change in the level of the water represents?

A. volume of waterB. weight of the stoneC. volume of stoneD. weight of the stone

Answer: C

8. The picture shows the three layers of

the Earth. Where is it hottest?

A. Layer A C. Layer B B. Layer C D. All 3

layers are the same

temp.

Answer: B

9. What layer of the earth is inferred to be liquid in form?

A. crust B. mantle

C. outer coreD. inner core

Answer: C

10. Why does boiling of water in a kettle overflow and spill?

A. Water increases its volume when heated.B. Water forms bubbles when heated.C. Water expands when heated.D. Water overflow when heated.

Answer C

AVERAGE ROUND

1. The movie “Twilight Zone” has a

wolf - character portrayed by Taylor

Lutner. There are scenes, he, as a wolf

place his scent on trees. Wolves most

likely do this in order to ________.A. attract preyB. attract female wolves.C. mark their territory against

other wolves.D. mark the location of their

shelter and food.

Answer: C

2. Which BEST describes the movement of the plates that make up Earth’s surface over million of years?

A. They have never moved. B. They have been continually

moving.C. They stayed the same millions

of years but are now moving.D. They moved for millions of

years but have now stopped.

Answer:

B

4. Why do mountain climbers use

oxygen equipment at the top of the world’s highest mountain?

A. There is less oxygen in the air at

great heights.B. There is little nitrogen in the

air at great heights.C. There is a hole in the ozone

layer.D. There is no air at the top of

very high mountains.

Answer:

A

5. Two potatoes of equal mass were boiled, one in Baguio and one in Manila. Where will the potato cook faster and why?

A. In Baguio, the higher the altitude the higher the temperature.B. In Baguio, the higher the altitude the lower the temperature.C. In Manila, the lower the altitude the higher the temperature.D. In Manila, the higher the altitude the lower the temperature.

Answer:

C

6. Which of the following characterizes varicose veins?

A. Veins in the brain swell.B. Veins in the lower extremity shrink.C. Valves of veins in the legs fail to function properly. D. Valves of veins in the heart fail to function properly.

Answer:

C

7. Why was Pioneer - Venus 2 sent to Venus?

A. To investigate the atmosphere of Venus.B. To examine the soil in Venus.C. To probe the interior part of Venus.D. To discover the possible life forms in Venus.

Answer:

A

8. In general, pages of books turn brown after a number of years. Why?

A. The paper has become dusty.B. The paper has become very dry.C. The paper has reacted with oxygen from the air.D. The paper has reacted with pollutants in the air.

Answer:

C

9. Which of the following best describes the energy of a ball as it bounces up and down?

A. Potential Energy and Kinetic energy change at the same time.B. Potential Energy increases as it moves down.C. Kinetic energy increases as it moves up.D. Potential Energy and Kinetic energy remains the same.

Answer:

A

10. The mathematical questions that probe the Big Bang Theory were formulated by ________

A. Alexander Friedman B. Albert Einstein

C. Edwin HubbleD. Edwin Aldrin Jr.

Answer:

B

DIFFICULT ROUND

1.An incomplete food web has been drawn for

you. Complete it by filling in each of the empty

circles with the member of the correct animals or

plants from the list. Remember that the arrows

represent energy flow and go. A. Caterpillar C.

Hawk B. Corn D. SnakeACACI

ATREE

MOUSE

MAYA

SUN

? ?

?

?

ACACIA

TREE

MOUSE

MAYA

SUN

A

BD

C

ANSWER: B. Corn A. Caterpillar D. Snake C. Hawk

2. Insecticides are used to control insect population so that they do not destroy crops. Overtime some insecticides become less effective at killing insects and new insecticides must be developed. What is most likely reason why insecticides become less effective overtime? A. Surviving insects have learned to include insecticides as a food source. B. Surviving insects pass their resistance to insecticides to their offspring. C. Insecticides build up in the soil. D. Insecticides are concentrated at the bottom of the food chain.

Answer:

B

3. . The graph shows the progress made by a car travelling along a straight line. What is the speed of the car?

TIME ( MINUTES)

DISTANCE (kms).

Answer: 100 Km/Hr

5. What feature in the sun appears like billowing arches of glowing gases?

Answer:

Prominences

6. Which part of the brain acts like a switchboard that allows the communications from the brain to the other parts of the nervous system.

Answer:

Midbrain

7. A galaxy that comprises two to three percent of the total number of galaxies.

Answer:

Irregular galaxy

8. Where can the lowest point on the earth's crust be found?

Answer:

Marianas Trench

9. Why do you see lightning spark first before you hear thunder during a thunderstorm?

Answer: Because light travels faster than sound.

10. What season is characterized with the most amount of leaves falling from trees?

Answer:

Autumn

CLINCHER ROUND

1. When a physician puts a stethoscope to your chest , two sounds are heard. What sound represents the opening and closing of the valves?

Answer: lub-dub, lub-dub

2. A hereditary blood disorder wherein blood clots very slowly affecting only males but transmitted in genes of females.

Answer:

Hemophilia

3. For a rocket to orbit the earth and become a satellite, its speed must be around _____

Answer: 29 000 kph

4.Why do sailors avoid the doldrums?

A. because their ships woud just stay in a particular area and would not move B. because theirips would sail so fast that they may hit the rocks C. because their ships would hit polar icebergs D. both A and C

Answer: A

5. Which instrument can view the heavenly bodies clearly and without the filtering effect of Earth's atmosphere?

A. radio telescope B. spectrograph C. space telescope D. space colony

Answer: C