Quiz bee science 6 reviewer

1. GRADE VI
Science Quiz

2. EASY ROUND

3. 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. energy
B. minerals
C. vitamins
D. water

4. 2. What is predicted as a result of
global warming?
A. Rising sea and ocean levels.
B. More severe earthquakes.
C. Larger volcanic eruption.
D. Thinning of the ozone layer.

5. 3. Sensory messages are taken to
the brain by ____________.
A. arteries and veins
B. arteries and hormones
C. nerve and hormones
D. muscles and veins

6. 4. 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

7. 5. Most of the chemical released
when gasoline burns in a car engine is
not used to move the car, but it is
changed into:
A. heat
B. sound
C. magnetism
D. electricity

8. 6. The picture shows the three layers of
the Earth. Where is it hottest?
A. Layer A C. Layer C
B. Layer B D. All 3 layers are the
same temp.

9. 7. On a warm sunny day, you will feel
cooler wearing light –colored clothes
because they_________.
A. Are not as heavy as dark clothes.
B. reflect more radiation.
C. prevents sweating.
D. let more air in.

10. 8. When I visited one of the schools, I
noticed that the floor is very shiny. When
accidentally I slipped, how much force is
acting on the soles of my shoes and the
floor?
A. less friction
B. more friction
C. enough friction
D. abundant friction

11. 9. A spectroscope is another instrument
used by astronomers in their study of the
heavenly bodies. It diffuses light into
different wavelengths. Which color has
the longest wavelenght?
Write down your answer….

12. 10. What form of energy is released when
a Uranium atom is split?
A. Chemical energy
B. Mechanical energy
C. Electrical energy
D. Nuclear energy

13. AVERAGE ROUND

14. 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 doing this in order to ________.
A. attract prey
B. attract female wolves.
C. mark their territory against other
wolves.
D. mark the location of their shelter
and food.

15. 2. Which BEST describes the move-
ment 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.

16. 3.Chemical Energy ---- Heat Energy ---- Mechanical Energy
(with wasted heat)
The sequence of energy changes shown
in the diagram explains which event?
A. A flashlight is on.
B. A candle burns.
C. Gasoline burns to power a car.
D. Electric current runs a refrigerator.

17. 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.

18. 5. Some orchids grow on branches of
trees where they can exposed to
sunlight. Orchids need sunlight to be
able to make their own food. The tree
is not affected at all. What kind of
relationship is this?
Write down your answer…..

19. 6. When you touch something hot, you move
your hand right away from the objects as
soon as you feel the hot sensation, why?
A. The blood moves faster because of the
heat.
B. The messages travels fast because of the
heat.
C. Messages to and from the brain travel fast
through the nerves.
D. Messages travels through the muscles
wherein it contracts before sending to the
brain.

20. 7. A person in a dark room looking through a
window can clearly see a person outside in the
daylight. But a person outside cannot see the
person inside. Why does this happen?
A. Outside light does not pass through
windows.
B. Light rays cannot pass through a window
twice.
C. Sunlight is not as intense as other source
of light.
D. Light is not enough being reflected off
the person in the room.

21. 8. The table gives the temp. (0C ) at a certain place
at different times of the day for three days.
When did the wind become much colder?
A. Monday morning
B. Monday afternoon
C. Tuesday morning
D. Tuesday afternoon
E. Wednesday afternoon
6 am 9 am 12 nn 3pm 6pm
Monday
Tuesday
Wednesday
150C
150C
80C
170C
150C
100C
200C
150C
140C
210C
50C
140C
190C
40C
130C

22. 9. Sir Isaac Newton formulated Three Laws of
Motion to better understand force and motion.
When you do shopping at the supermarket ,
you use a cart. You need more force to
accelerate a cart full of groceries. This is an
application of what Law of Motion?

23. 10. You live in a world of world of
Electronics. Which electronic invention
has made possible the use of computers,
electronic banking machines and even
satellites in space?
A. nuclear energy
B. semiconductors
C. radioisotopes
D. entropy

24. DIFFICULT ROUND

25. 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. Snake
ACACIA
TREE
MOUSE
MAYA
SUN
?
?
?
?

26. 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.

27. 3. . The graph shows the progress made by a car
travelling along a straight line. What is the speed
of the car?
A. 25 kms. / hour C. 75 kms / hour
B. 50 kms. / hour D. 100 kms. / hour
TIME ( MINUTES)
DISTANCE
(kms).

28. 4. The diagram on the left shows a ball on the of a string being
whirled in a circle. The diagram on the right shows the whirling ball
as viewed from above.

29. 5. A girl has an idea that green plants need sand in the soil
for healthy growth. In order to test her idea she uses two pots
of plants. She sets up one pot of plants as shown below.
Which of the following should she use for the second pot of plants?
A B C
E
D
Sand, soil and water
Sand and water
Sand and water
Sand, soil and water
Sand and soil
Soil and water

30. CLINCHER ROUND

31. 1. Why do you see lightning spark
first before you hear thunder during
a thunderstorm?
A. Light travels in the air.
B. Sound could be heard.
C. Sound travels fastest in solids.
D. Light travels faster than sounds.

32. 2. When a physician puts a stethoscope to
your chest , two sounds are heard. What
sound represents the opening of the
valves and closing of the valves?
Ans.: “lub-dub, lub-dub

33. 3. It is a blood disorder which is hereditary in
which blood clots very slowly affecting only
males but transmitted in genes of females.
Ans.: hemophilia

34. 4. Which concept is TRUE about the arrangement
of molecules of matter?
A. The molecules of liquids are arranged closer
to one another.
B. The molecules of liquids are arranged
farther apart than solids.
C. The molecules of solids are arranged
farthest apart from one another.
D. The molecules of gases are arranged close
together than liquids.

35. 5.Observe the sky on a clear night. You
want to find out which of the stars are
young. Which of the following stars
should you look for?
A. red star C. bluish- white star
B. yellow star D. both A and B

36. Ans.