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SCIENCE REVIEWER 4

Total questions: 85

Worksheet time: 47mins

Name
Class
Date
1.

How many bones are there in an adult body?

a)

316

b)

306

c)

216

d)

206

2.

This is the center of the earth

a)

Crust

b)

Core

c)

Mantle

d)

Atmosphere

3.

What common material is this element?

NaCl

a)

water

b)

air

c)

salt

d)

sugar

4.

This is the green coloring pigment in the leaves of plants

a)

Chlorophyll

b)

Chloroform

c)

Chlorine

d)

Chlorouflorocarbons

5.

Which of the following planets has no moon?

a)

Mars

b)

Venus

c)

Earth

d)

Pluto

6.

Which of the following is NOT a Mammal?

a)

Dolphin

b)

Whale

c)

Sea Cow

d)

Whale Shark

7.

It refers to a shaking of the ground caused by a sudden release of energy in the earth's crust.

a)

Tsunami

b)

Earthquake

c)

Volcanic Eruptions

d)

Seismic Waves

8.

The Earth's axis is tilted at an angle ______________ and points to the same directions throughout its movement.

a)

23 1/4 degrees

b)

23 1/2 degrees

c)

20 degrees

d)

23 degrees

9.

What does the northeast monsoon bring to the Philippines?

a)

cold and dry air

b)

cold and humid

c)

dry season

d)

wet season

10.

What factor influences the season of the Philippines?

a)

Altitude

b)

Air mass

c)

Temperature

d)

Prevailing Winds

11.

The rotation of the earth on its axis causes ___________________.

a)

changing seasons

b)

tides

c)

differences of time in different places

d)

day and night

12.

Why does magma rise to the surface and the surrounding rocks around it do not?

a)

Magma is hot.

b)

Magma is lighter or less dense.

c)

Magma causes pressure.

d)

Surrounding rock is lighter or less dense than the magma.

13.

Which of the following statements is TRUE?

a)

Earth completes one rotation in 365 days.

b)

Earth rotates on its axis as it revolves around the sun.

c)

The sun revolves around the earth while earth rotates.

d)

Earth rotates once a month as it revolves around the sun.

14.

Total number of chambers in a heart

a)

2

b)

3

c)

4

d)

5

15.

The instrument used to measure moisture in the atmosphere is

a)

Barometer

b)

Hydrometer

c)

Hygrometer

d)

Anemometer

16.

What vitamin is produced by the sunlight?

a)

Vitamin A

b)

Vitamin C

c)

Vitamin D

d)

Vitamin B

17.

It is the way or biological process by which insects develop after birth or hatching, usually accompanied by change of habitat or behavior.

Type your answer in a CAPITAL LETTERS only.

(a)  

18.

Weathered pieces of rock.

a)

pebbles

b)

sediment

c)

eroded

d)

shale

19.

Breaking down earth's materials at or near the surface.

a)

erosion

b)

weathering

c)

cementation

d)

deposition

20.

Wind or water carrying away weathered pieces of sediment.

a)

deposition

b)

weathering

c)

erosion

d)

cementation

21.

Gas surrounding Earth made of 78% nitrogen and 21% oxygen.

a)

lake effect

b)

greenhouse gas

c)

atmosphere

d)

climate

22.

Earth rotates on this imaginary line.

a)

diagonal

b)

axis

c)

radius

d)

diameter

23.
The sun is made of?
a)
Nitrogen and helium and other gases
b)
Air
c)
Fire
d)
Just Nitrogen
24.

It sends messages to the brain to tell us about the sounds we hear?

a)

Retina

b)

Optic nerve

c)

Olfactory nerve

d)

Auditory nerve

25.

It is where the white part of the eye becomes bloodshot or sore.

a)

Cataracts

b)

Glaucoma

c)

Strabismus

d)

Conjunctivitis

26.

What body system is responsible for supplying oxygen to the body?

a)

Skeletal System

b)

Circulatory System

c)

Excretory System

d)

Respiratory System

27.

A community of organisms interacting with the physical environment.

a)

Ecosystem

b)

Ecological Niche

c)

Ecological Succession

d)

Forest

28.

The right and left sides of the heart are separated by a ­­­______.

a)

myocardium

b)

pericardium

c)

septum

d)

thrombocytes

29.

Chemical formula for water is

a)

NaAlO2

b)

Al2O3

c)

H2O

d)

CaSiO3

30.

The gas usually filled in the electric bulb is

a)

nitrogen

b)

hydrogen

c)

carbon dioxide

d)

oxygen

31.

Which of the gas is not known as green house gas?

a)

Methane

b)

Nitrous oxide

c)

Carbon dioxide

d)

Hydrogen

32.

EASY:   It refers to the atmospheric condition of a place over a long period of time.

a)

Climate

b)

Topography

c)

Weather 

d)

Monsoon

33.

EASY: Which activity does not contribute to global warming?

a)

Illegal fishing 

b)

Reforestation  

c)

mining activities

d)

incineration of garbage

34.

DIFFICULT: What is the largest constellation known?

a)

Hydra

b)

Draco

c)

Crux

d)

Cetus

35.

3. Part of the plant that generates seeds.

a)

flower

b)

leaf

c)

root

d)

stem

36.

3. It is an instrument that measures wind speed and wind pressure.

a)

anemometer

b)

barometer

c)

hydrometer

d)

thermometer

37.

3. Why do Grade 3 pupils have difficult time finding grasshoppers among the plants and grasses?

a)

They moved faster in the ground.

b)

They escape from their enemies by pretending.

c)

They used their keen sense of hearing to see danger.

d)

They have colors similar to their background.

38.

5. When the moon cannot be seen because we are looking at the unlit half of the moon. This phase occurs when the moon is between the Earth and Sun. What phases of moon is being described in the statement.

a)

crescent moon

b)

full moon

c)

new moon

d)

half moon/quarter moon

39.

Liquids have -

a)

no definite shape or volume

b)

a fixed or definite shape but no definite volume

c)

a fixed/definite shape and volume

d)

a definite/fixed volume but no definite shape

40.

What do atoms contain?

a)

elements, neutrons, and bonds

b)

protons, neutrons, and electrons

c)

protons, molecules, and elements

d)

electrons, protons, and bonds

41.

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

42.

Matter changing state from a gas to a liquid is called what?

a)

evaporation

b)

condensation

c)

boiling

d)

freezing

43.

Which scientist is best known for the formula E=MC2

a)

Albert Einstein

b)

Issac Newton

c)

Thomas Edison

d)

Galileo

44.

Which element makes up the majority of Earth's atmosphere?

a)

Oxygen

b)

Nitrogen

c)

Hydrogen

d)

Carbon

45.

The most abundant element in the universe is what?

a)

Hydrogen

b)

Helium

c)

Oxygen

d)

Carbon

46.

What percent of the Earth’s surface is covered by Oceans?

a)

75%

b)

86%

c)

70%

d)

100%

47.

Which is a example of an abiotic factor?

a)

panda

b)

turtle

c)

butterfly

d)

weather

48.

How many valves are in the heart of human body?

(a)  

49.

Name the hot middle layer of earth?

(a)  

50.

The cell organelle that controls all the cell's functions is the:

(a)  

51.

The process performed by cells to obtain energy from sugar and oxygen is:

(a)  

52.

The plant process to make sugars using carbon dioxide, water, chlorophyll and sunlight is:

(a)  

53.

The scientific name for the skull is the:

(a)  

54.

The tube between the mouth and the stomach is the:

(a)  

55.

What do we call the study of the relationships and interactions of living things with one another and with their environment?

(a)  

56.

Which parts of the plants have nodules that contain bacteria?

(a)  

57.

What do you call the part of the ecosystem where an organism lives?

(a)  

58.

What organisms are the bases of the energy pyramid?

(a)  

59.

What condition can discontinue the cycles in an ecosystem?

(a)  

60.

What kind of animals eat only plants?

(a)  

61.

What do we call the animals that feed in dead animals?

(a)  

62.

It is a group of organisms of the same kind that live together in the same area.

(a)  

63.

(Easy)1. What is release by the body as waste during respiration?

a)

a. oxygen

b)

b. carbon dioxide

c)

c. toxins

d)

d. sweat

64.

(Easy)2. Which part of the Circulatory System is responsible for pumping blood throughout the body?

a)

a. blood

b)

b. artery

c)

c. heart

d)

d. vein

65.

(Easy)3. This is a respiratory illness that belongs to the large family of viruses called corona viruses.

a)

a. covid-19

b)

b. chronic bronchitis

c)

c. asthma

d)

d. lung cancer

66.

Freshwater is about how many percent of the earth's water content?

a)

75%

b)

23%

c)

3%

d)

1%

67.

What type of soil is good for growing plants?

a)

Sand

b)

Loam

c)

Clay

d)

Subsoil

68.

If oxygen has 8 protons, how many electrons does it have?

a)

8

b)

4

c)

16

d)

1

69.

The ability to do work

a)

Power

b)

Work

c)

Energy

d)

Matter

70.

The energy in every moving objects

a)

Kinetic

b)

Potential

c)

Chemical

d)

Electrical

71.

It is considered as the indivisible and indestructible building block of matter

a)

Energy

b)

Nucleus

c)

Atom

d)

Protons

72.

Symbol of Gold

a)

Au

b)

Al

c)

Ar

d)

Ag

73.

3. Why is bone marrow important to the body?

a)

A. It stores much fat

b)

B. It makes the bone strong.

c)

C. It produces red blood cell

d)

D. It produces new bone cell

74.

The acceleration given to a body depends upon its......

a)

Force

b)

Mass

c)

Acceleration

d)

Momentum

75.

When water is heated, its temperature rises until it reaches the boiling point. What is the boiling point of water?

a)

212 degree Celsius

b)

100 degree Celsius

c)

112 degree Celsius

d)

299 degree Celsius

76.

Most diseases of the ear that involves an inflammation, infection, or allergic condition are treated by specially trained doctors called:

a)

Cardiologists

b)

Dermatologists

c)

otolaryngolosit

d)

Gastroenterologists

77.

The nasal cavities are lined with small, hair-like structures called:

a)

nostrils

b)

mucus

c)

cilia

d)

olfactory cells

78.

Animals that live in water are called:

a)

terrestrial animals

b)

aquatic animals

c)

desert animals

d)

vertebrates

79.

Largest group of invertebrates:

a)

Mammals

b)

Fish

c)

Amphibians

d)

Insects

80.

Outer white layer of the eye.

a)

Sclera

b)

Pupil

c)

Cornea

d)

Pupil

81.

The inner layer of the eye which is a screen of light-sensitive cells.

a)

Pupil

b)

Retina

c)

Cones

d)

Lens

82.

The property of solid materials to be stretched when pressure is applied on them.

a)

Brittleness

b)

Elasticity

c)

Hardness

d)

Malleability

83.

It is the resistance of a liquid to flow.

a)

Malleability

b)

Viscosity

c)

Gravity

d)

Elasticity

84.

The surface of the tongue is covered with small projections called:

a)

Papillae

b)

Taste Receptors

c)

Umami

d)

Taste Buds

85.

It is the amount of space occupied by matter.

a)

Mass

b)

Volume

c)

Density

d)

Mixture

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