The document consists of a series of science questions covering various topics such as states of matter, energy transformations, human anatomy, ecosystems, and relationships among organisms. It addresses concepts like chemical and physical changes, the law of inertia, and the classification of animals, as well as environmental issues like global warming. The questions are structured in a multiple-choice format to assess understanding of fundamental scientific principles.

1. SCIENCE
TASK 2

2. 1. When ice melts, what
change occur?
a. Liquid to gas
b. Gas to liquid
c. Solid to liquid
d. Gas to solid

3. 2. If you pour acid on
limestone, it produces
carbon dioxide gas. What
changes occur?
a. Physical Change
b. Chemical change
c. Both
d. Nothing happens

4. 3. Which of the following
is NOT a physical change?
a. Grating cheese
b. Melting Cheese
c. Fermenting of cheese
d. Mixing two cheeses in a
bowl

5. 4. Which transformation of
energy takes place when a
toaster is switched on?
a. Chemical to sound
b. Electrical to sound
c. Chemical to thermal
d. Electrical to thermal

6. 5. When you see bubbles on the bowl
of soup which had been left on the
table for one night, you may infer that:
a. The liquid component of the soup is
evaporating
b. Physical change is taking place in
the soup
c. The soup is undergoing chemical
change
d. Air is dissolved in the soup

7. 6. Deib Lhor kicks a ball on a
level sidewalk. It rolls to stop
after sometime because____
a. No force is acting on the ball
b. Inertia at rest is acting on
the ball
c. Gravity pulls the ball down
d. Friction slows the ball down

8. 7. Max apply grease to the
gears of her bicycle to___
a. Reduce friction
b. Increase acceleration
c. Avoid accident
d. Facilitate easy turn in the
curve

9. 8. Zarnaih threw a ball over
the fence. What energy did
the moving ball have?
a. Heat energy
b. Potential energy
c. Light energy
d. Kinetic energy

10. 9. Which of the following explains the
law of inertia?
a. If no force acts on an object that is
moving, it will continue moving at the
same speed and direction
b. An object accelerates because of a
force that acts on it.
c. For every action, there is an equal
and opposite reaction
d. A force causes the object to move in
circular motion.

11. 10. Chemical spray is harmful
to the environment. Why?
a. Its affects the clouds
b. It pollutes the rivers and
oceans
c. It destroys the ozone layer
d. It destroys our clothes

12. 11. Why can planet Earth
support life?
a. It has an atmosphere
b. It has soil where green
plants grow
c. It has enough sunlight
d. All of the above

13. 12. GLOBAL WARMING is the
abnormal rise of Earth’s
temperature. What cause of it?
a. Greenhouse effect
b. Burning houses
c. Air pollution
d. Garbage dumping

14. 13. A toy robot can walk
and talk and runs on
batteries. What type of
energy is stored in the
batteries?
a. Chemical
b. Electrical
c. Nuclear

15. 14. Which transformation
of energy takes place when
a toaster is switched on?
a. Chemical to sound
b. Electrical to sound
c. Chemical to sound
d. Electrical to sound

16. 15. It is the complete trip of the
blood from the heart to all parts
of the body and back to the
heart.
a. Digestion
b. Circulation
c. Respiration
d. Secretion

17. 16. What happens to the blood when
it reaches the lungs?
a. The blood becomes pure and clean
b. The blood becomes oxygenated in
the lungs
c. The blood becomes deoxygenated
in the lungs
d. The blood flows continuously to
the lungs

18. 17. Which of the following
controls our body activities?
a. Nerves
b. Spinal Cord
c. Brain
d. Backbone

19. 18. Which of the following
carries messages to and
from the brain?
a. Nerves
b. Spinal cord
c. Vertebrae
d. Backbone

20. 19. Why can you hear a sound?
a. The nerves that are sensitive to
sound carry the message to the
brain
b. The nerves that are sensitive to
light carry message to the brain
c. The outer ear collects sounds
d. The sounds are loud enough

21. 20. What is function of the spinal cord?
a. Responsible for man’s ability to learn
habits and develop skills
b. Enables us to think, remember and to
be aware of many things around us
c. Enables the sensory and motor
information to pass between the
brain and the parts of the body
d. Carry impulses from sense receptors
to the central nervous system.

22. 21. What part of the brain is the
largest and controls mental
processes such as thinking,
memorizing, and decision-
making?
a. Spinal Cord
b. Cerebrum
c. Cerebellum
d. Brain Stem

23. 22. You saw your mother carrying a basket
full of grocery items that she brought from
the market. You run to help her. What is the
usual path of messages received by the body
from the environment?
a. brain->nerves->spinal cord-> sense
organs
b. Nerves-> sense organs-> brain-> spinal
cord
c. Spinal cord->sense organs->brain->
nerves
d. Sense organs->nerve->spinal cord-> brain

24. 23. Which organism is an
omnivores?
a. Snake
b. Caterpillar
c. Eagle
d. Chicken

25. 24. The tail enables the sperm to
swim. Why does the sperm need to
be able to swim?
a. To travel around the testicle
b. To prevent drown in the semen
c. Because it is a member of the
fish family
d. In order to get to the egg.

26. 25. Zygote means new
individual. That fusion of the
male and female gamete to
form a zygote is known as___
a. Ejaculation
b. Pollination
c. Fertilization
d. Menstruation

27. 26. To prevent the passing of
eggs from the ovary, which part
of the organ is tied or cut in an
operation called tubal ligation?
a. Urethra
b. Ovary
c. Cervix
d. Fallopian tubes

28. 27. What is the function of the
kidney?
a. It stores urine
b. It carries urine out of the
body
c. It removes wastes from the
blood
d. It gives signal to the brain to
expel the urine from the

29. 28. What do all vertebrates
have in common?
a. They live on land
b. They all have a hard
internal skeleton or
backbone
c. They all have legs
d. They are all warm blooded

30. 29. Which of the following
animals are classified as
amphibians?
a. Frog and salamander
b. Lizard and alligator
c. Monkey and bear
d. Eagle and dove

31. 30. How do clams, oysters, and
snails protect themselves
from their enemies?
a. By making slimy secretions
b. By using their hard shells
c. By using their spines
d. By secreting poison

32. 31. Adaptations are inherited
characteristics that help an
organism to survive and reproduce
in its environment. Looking both
ways before crossing a street helps
us survive because it is____
a. A survival adaptation
b. An inherited survival experience
c. Learned through experience
d. Inherited from our parents

33. 32. Which one of the following
describes an adaptation?
a. An insect that acts as a
decomposer
b. A type of desert animal
c. Feature that helps an animal or
plant to survive
d. A group of bacteria that live in
an environment

34. 33. Which is NOT an example
of plant adaptation?
a. A cactus has a thick cover
to hold water in
b. A tree loses its leaves in the
winter
c. A plant has green leaves
d. A lily grows bright red
flowers to attract

35. 34. The inside of the Earth consists of
four major layers. What is the
correct order of the layers from the
inside of the Earth outwards?
a. Inner core, outer core, crust,
mantle
b. Mantle, inner core, outer core,
crust
c. Inner core, outer core, mantle,
crust

36. 35. The clean-up crew are decomposers.
They get rid of the wastes in an
ecosystem. Decomposers differ from
scavengers because they_____
a. Do not eat dead organism
b. Break down larger organism
c. Only eat dead organism
d. Only feed on dead plants and animals

37. 36. Organisms vary according to
what food they eat and how they
eat it. Which of the following
combinations is NOT true?
a. Python, wild pig, movable jaws
b. Moth, plant parts, proboscis
c. Frog, insects, rolled tongue
d. Bird, insects, beak

38. 37. This is the ability to face things
as they are, to be happy and
cheerful most of the time, to get
along with others and to work in
helpful ways.
a. Good mental health
b. Friendly status
c. Positive action
d. Negative attitude

39. 38. Some living things depend on
each other in a very close
relationship, which lasts over
time. This relationship is called..
a. Symbiosis
b. Parasitism
c. Mutualism
d. Commensalism

40. 39. Plant -> Grasshopper -> Frog->
Snake->Eagle
To what order of consumer
does the frog belong in the food
chain?
a. First-order consumer
b. Second-order consumer
c. Third-order consumer
d. Fourth-order consumer

41. GOOD LUCK 