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Worksheets

Reviewer

Total questions: 224

Worksheet time: 2hrs 52mins

Name
Class
Date
1.

It is formed when substances are combined

a)

matter

b)

mixture

c)

solid

d)

liquid

2.

The substance being dissolved is the _____.

a)

solute

b)

solvent

c)

colloid

d)

matter

3.

A mixture in which particles can be distinguished is called ________.

a)

Solution

b)

Colloid

c)

homogeneous mixture

d)

heterogeneous mixture

4.

These are the mixtures that often have a main component or a base ingredient.

a)

Homogeneous

b)

Heterogeneous

c)

Colloid

5.

A mixture in which the components or ingredients are not distinguished from one another

a)

Heterogenous

b)

Homogeneous

c)

Colloids

6.

It is a solvent that dissolves many substances, also call universal solvent.

a)

solute

b)

solvent

c)

water

7.

It used filter paper for the particles of coffee to be separated.

a)

Diffusion

b)

Filtration

c)

Centrifugation

8.

Salivary glands Produces saliva in your

a)

nose

b)

mouth

9.

The nutritional components of the food are then absorbed by the

a)

large intestines

b)

small intestines

10.

Organs are made up of different

a)

tissues

b)

cells

11.

Skeleton gives shape to our

a)

body

b)

tissues

12.

New born has about _______ bones

a)

206

b)

300

13.

An adult has ____ bones.

a)

206

b)

300

14.

1. An adult human muscular system consists of 600

a)

bones

b)

muscles

15.

Digestion begins in the

a)

mouth

b)

stomach

16.

Name any two digestive organs .

a)

intestines. food pipe

b)

nose, lungs

17.

We can stand straight and walk due to our

a)

muscles

b)

skeleton

18.

The food pipe connects the mouth and

a)

intestines

b)

stomach

19.

The bones are hard and join together to form a

a)

muscles

b)

skeleton

20.

The ___________ breaks down food into small pieces.

a)

stomach

b)

kidney

21.
    ________________ are malleable and ductile.
a)
Metals
b)
    Non-metals
c)
  Carbon
d)
   Water
22.
Chloroplasts look green because they contain a green substance called _________________
a)
    Chlorophyll
b)
      Cell sap
c)
    Nucleus
d)
    Haemoglobin
23.
____________ transfer messages from one part of the body to another.
a)
   Root hair cell
b)
   Nerve cell
c)
       Bones
d)
    Tissues
24.
Chlorine is an example of _________________
a)
Metal
b)
Non-metal
c)
Metalloid
d)
Plastic
25.
_____________ is the only metal that is liquid at normal temperature and pressure.
a)
Diamond
b)
Iron
c)
Mercury
d)
Gold
26.
_________________ is a disease caused by a protozoan.
a)
Influenza
b)
Tuberculosis
c)
Malaria
d)
Cholera
27.
_______________ cause organic matter to decay.
a)
Microorganisms
b)
Gases
c)
Humans
d)
Plants
28.
Which of the following is a property of metals?
a)
Sonority
b)
Brittle
c)
Poor conductor of electricity
d)
Dull
29.
A substance that has been made from living organisms is called _________________
a)
Inorganic matter
b)
Organic matter
c)
Soil
d)
Minerals
30.
Metals are _____________, means they can be beaten into shape.
a)
Ductile
b)
Malleable
c)
Brittle
d)
Conductor
31.

Inner Planets are also called.

a)

Terrace Planets

b)

Terrestrial Planets

c)

Terminal Planets

d)

Treasure Planets

32.

Inner planets are most likely ____

a)

closer to the Sun and are smaller and made of gasses

b)

away from the sun and made up mostly of rocks

c)

closer to the Sun and are smaller and rockier

d)

away from the sun and made up mostly of gasses

33.

Inner planets are consist of ______

a)

Mercury , Venus, Jupiter and Mars

b)

Mercury, Jupiter, Saturn and Mars

c)

Marcury, Earth, Mars and Neptune

d)

Mercury, Venus, Earth and Mars

34.

Planets that is closest to the and orbits the sun for 88 days.

a)

Earth

b)

Mercury

c)

Mars

d)

Venus

35.

Two moons of Mars are called ____.

a)

Titan

b)

Deimos

c)

Rhea

d)

Phobos

36.

Which of the following is considered the 'Red Planet?

a)

Mars

b)

Earth

c)

Venus

d)

Mercury

37.

All inner planets have moon.

a)

True

b)

False

38.

Which statement about inner planets is true?

a)

All inner planets are mostly covered with water.

b)

The inner planets have common types of rocky land forms such as mountains and volcanoes

c)

Earth is the hottest inner planets

d)

All inner planets have thick and protective atmosphere.

39.

Which planet is on the picture?

a)

Earth

b)

Mercury

c)

Mars

d)

Venus

40.

Which of the planets considered to be hospitable to life.

a)

Mars

b)

Venus

c)

Mercury

d)

Earth

41.

The solar system is believed to have formed roughly 4.568 billion years ago.

a)

True

b)

False

42.

Even though Mercury is the closest planet to the Sun, Venus is the hottest of all planets in the solar system.

a)

Yes

b)

No

c)

May be

d)

I don't know

43.

Object "D" in the solar system diagram represents which planet?

a)

Mercury

b)

Earth

c)

Mars

d)

Venus

44.

It is the center of the Solar System.

a)

Asteroids

b)

Jupiter

c)

Mars

d)

Sun

45.

It is sometimes referred to as the sister planet to Earth, because their size and mass are so similar.

a)

Mars

b)

Mercury

c)

Jupiter

d)

Venus

46.

How are you feeling today?

a)

Happy

b)

Excited

c)

Curious

d)

Motivated

47.

These are the mixtures that often have a main component or a base ingredient.

a)

Homogeneous

b)

Heterogeneous

c)

Colloid

48.

A mixture in which the components or ingredients are not distinguished from one another

a)

Heterogenous

b)

Homogeneous

c)

Colloids

49.

It is a solvent that dissolves many substances, also call universal solvent.

a)

solute

b)

solvent

c)

water

50.

It used filter paper for the particles of coffee to be separated.

a)

Diffusion

b)

Filtration

c)

Centrifugation

51.

A type of separation that uses a vent with electrostatic precipitator to filter smoke.

a)

Diffusion

b)

Centrifugation

c)

Electricity

52.

The cream from the milk is separated through the process of _________________.

a)

Centrifugation

b)

Diffusion

c)

Filtration

53.

What kind of separation is used during a dialysis treatment?

a)

Filtration

b)

Electricity

c)

Diffusion

54.

Which of the following statements is correct about conserving our

tropical rainforests, coral reefs, and mangrove swamps?

a)

Do not destroy the natural resources.

b)

Throw your garbage in the proper place.

c)

Cut down the trees.

d)

Join tree planting projects.

55.

Coral reefs are also known as ___________ of the Ocean because these

ecosystems teem with life.

a)

Tropical

b)

Mangrove

c)

Ecosystem

d)

Rainforests

56.

Which ecosystem has trees that grow very tall but still their roots lay on

the soil beneath the water?

a)

Tropical Rainforest

b)

Coral Reef

c)

Mangrove Swamp

d)

Aquarium

57.

4. Which of the following shows proper way of taking care of the ecosystem?

a)

Avoid cutting down trees.

b)

Plant more trees.

c)

Recycle papers.

d)

All of the above

58.

This kind of ecosystem possesses a greater density of plants and animal

life than any other type of ecosystem.

a)

Mangrove Swamp

b)

Terrarium

c)

Tropical Rainforest

d)

Coral Reefs

59.

It is a kind of ecosystem where trees are abundant.

a)

Mangrove Swamp

b)

Tropical Rainforest

c)

Coral Reef

d)

Terrarium

60.

Which of the following statements is correct about conserving our

tropical rainforests, coral reefs, and mangrove swamps?

a)

destroy all the natural resources.

b)

throw your garbage in the river.

c)

cut down the trees.

d)

join tree planting projects

61.

How do you take care of the ecosystem?


A. Avoid cutting down trees

B. Plant more trees

C. Recycle papers

D. All of the above

a)

Plant more trees

b)

Recycle papers

c)

Avoid cutting down trees

d)

All of the above

62.

It is an ecosystem which grows in swamps.

a)

Tropical Rainforest

b)

Terrarium

c)

Coral Reef

d)

Mangrove Swamp

63.

Which of the following is often referred to as the “Rainforests of the

Ocean?”

A. Ecosystem

B. Coral Reefs

C. Mangrove Swamps

D. Tropical Rainforests

a)

Coral Reefs

b)

Tropical Rainforests

c)

Mangrove Swamps

d)

Ecosystem

64.

Think of other ways that can help your community showcase

the best in your ecosystem.

a)

yes

b)

no

65.

Encourage everyone on how to show concern for the


environment.

a)

yes

b)

no

66.

Throw your garbage in the river

a)

yes

b)

no

67.

Do not participate in campaigns that help protect and conserve


the ecosystem.

a)

yes

b)

no

68.

Be aware of the existence of the ecosystem in your community.

a)

yes

b)

no

69.

The job of the circulatory system is to carry . . . .

a)

blood

b)

oxygen

c)

sweat

d)

urine

70.

Pulse rate increases during . . . .

a)

exercise

b)

sleep

c)

study

d)

talk

71.

What is the biggest organ in your body?

a)

heart

b)

kidney

c)

bladder

d)

liver

72.

The liver changes the waste protein into . . . .

a)

sweat

b)

urine

c)

urea

d)

blood

73.

Which organ filter the blood?

a)

kidneys

b)

lungs

c)

heart

d)

liver

74.

Getting rid of waste is the job of . . . .

a)

immune system

b)

circulatory system

c)

excretory system

d)

skeletal system

75.

The . . . stores urine until you are ready to urinate.

a)

lungs

b)

liver

c)

skin

d)

bladder

76.

. . . carry blood from the heart to the body.

a)

Arteries

b)

Veins

c)

Pulse

d)

Liver

77.

What waste do your lungs get rid of?

a)

sweat and urine

b)

carbon dioxide and water

c)

sweat and water

d)

urine and water

78.

What does your bladder do?

a)

stores water

b)

stores blood

c)

stores urine

d)

stores energy

79.

Salivary glands Produces saliva in your

a)

nose

b)

mouth

80.

Digestive juice in the stomach mix with food and form a paste . Then passes to

a)

small intestine

b)

large intestine

81.

The nutritional components of the food are then absorbed by the

a)

large intestines

b)

small intestines

82.

Organs are made up of different

a)

tissues

b)

cells

83.

Skeleton gives shape to our

a)

body

b)

tissues

84.

New born has about _______ bones

a)

206

b)

300

85.

1. An adult has ____ bones.

a)

206

b)

300

86.

1. An adult human muscular system consists of 600

a)

bones

b)

muscles

87.

Digestion begins in the

a)

mouth

b)

stomach

88.

Name any two digestive organs .

a)

intestines. food pipe

b)

nose, lungs

89.

We can stand straight and walk due to our

a)

muscles

b)

skeleton

90.

The food pipe connects the mouth and

a)

intestines

b)

stomach

91.

The bones are hard and join together to form a

a)

muscles

b)

skeleton

92.

The ___________ breaks down food into small pieces.

a)

stomach

b)

kidney

93.

All organisms are made up of

a)

cells

b)

plants

94.

It is defined as the systematized body of knowledge based on facts of life.

a)

science

b)

mathematics

c)

physics

95.

Which of the following is not a state of matter?

a)

solid

b)

liquid

c)

gas

d)

volume

96.

What do you call this organ?

a)

brain

b)

kidney

c)

stomach

d)

heart

97.

What do you call this organ?

a)

heart

b)

brain

c)

kidney

d)

lungs

98.

What do you call this organ?

a)

brain

b)

heart

c)

kidneys

d)

lungs

99.

What do you call this organ?

a)

brain

b)

heart

c)

stomach

100.

It consists of the parts of the body that work together to turn food and liquids into the building blocks and fuel that the body needs.

a)

Respiratory System

b)

Digestive System

c)

Circulatory System

101.

It is the system that circulates blood and lymph through the body, consisting of the heart, blood vessels, blood, lymph, and the lymphatic vessels and glands.

a)

Integumentary System

b)

Digestive System

c)

Circulatory System

102.

It is the network of nerve cells and fibers which transmits nerve impulses between parts of the body.

a)

Nervous System

b)

Circulatory System

c)

Digestive System

103.

It is a system of organs functioning in respiration and in humans consisting especially of the nose, nasal passages, pharynx and etc.

a)

Circulatory System

b)

Digestive System

c)

Nervous System

d)

Respiratory System

104.

The bodily system that consists of the bones, their associated cartilages, and the joints.

a)

Integumentary System

b)

Muscular System

c)

Skeletal System

d)

Nervous System

105.

It is essential in the respiration of animals.

a)

carbon dioxide

b)

carbon monoxide

c)

nitrogen gas

d)

oxygen

106.

It is a biome present in the Philippines.

a)

savannah

b)

temperate forest

c)

tropical rainforest

d)

tundra

107.

It is a process that could help alleviate high amounts of carbon dioxide.

a)

crop rotation

b)

deforestation

c)

kaingin system

d)

reforestation

108.

It is essential for the anchorage of plants.

a)

compost

b)

humus

c)

soil

d)

water

109.

It is an organism that is very essential in an environment. A loss of this organism could lead to environmental balance.

a)

apex predator

b)

fungi

c)

keystone species

d)

scavenger

110.

It occurs when organisms compete for habitat or a resource such as food.

a)

commensalism

b)

competition

c)

mutualism

d)

predation

111.

A type of symbiotic interaction of two organisms living together wherein both benefit from the association.

a)

commensalism

b)

competition

c)

mutualism

d)

predation

112.

It is a type of interaction where organisms cooperate with each other for their survival.

a)

commensalism

b)

competition

c)

cooperation

d)

mutualism

113.

A kind of interaction between two species in which one organism benefits while the other organism is neither benefited nor harmed.

a)

commensalism

b)

competition

c)

cooperation

d)

mutualism

114.

It is the consumption of one organism, plant, or animal by another. It is composed of predator and prey.

a)

commensalism

b)

competition

c)

parasitism

d)

predation

115.

What do you call the involuntary contractions of your muscles that works in your digestive tract?

a)

Peristalsis

b)

Defecation

c)

Chyme

116.

Why do skin gets darker after a long exposure to sunlight? Because the skin…

a)

gets burn in the sunlight.

b)

produce dark pigment called melanin to protect the skin.

c)

sweat glands produces oil making the skin darker.

117.

What do you call the part of the skin that produces oil making the skin moisturize?

a)

Sweat glands

b)

Sebaceous gland

c)

Hair follicle

118.

The following are functions of the skin EXCEPT;

a)

it protects body’s internal living tissues and organs.

b)

it acts as receptor for touch, pressure, pain, heat and cold.

c)

it helps in production of Vitamin C

119.

What is the reason why acne occur usually in our faces? Because the face skin…

a)

usually has excess oil allowing bacteria to stick and clog the pores.

b)

is always open to dirt because it does not wear any mask or cloth.

c)

has bigger pores than the rest of the body.

120.

. What do you call this muscular tube that transports food from the mouth to the stomach?

a)

Trachea

b)

Esophagus

c)

Vocal cords

121.

What do you call the organ that produces bile to help in the digestion of cholesterol?

a)

Liver

b)

Gallbladder

c)

Pancreas

122.

The part of the lungs that that allows the exchange of gases is _____________.

a)

Bronchus

b)

Bronchioles

c)

Alveoli

123.

The following are uses of the oxygen in our body EXCEPT;

a)

production of oxygen in our body.

b)

helps in growth and repair of body cells and tissue.

c)

helps in production of energy from food.

124.

What do you call this blood vessel that sends away blood from the heart to the rest of the body?

a)

Artery

b)

Veins

c)

Capillaries

125.

What do you call the rhythmic stretching of the artery caused by the pressure of the blood?

a)

Pulse

b)

Valve

c)

Ventricles

126.

. What do you call this component of the blood that helps in blood clotting?

a)

Red Blood cells

b)

White blood cells

c)

Platelets

127.

What do you call the largest part of the brain that is also responsible for the higher thought?

a)

Cerebrum

b)

Cerebellum

c)

Brain Stem

128.

All of the following animals are example of vertebrates except;

a)

Whale

b)

Turtle

c)

Crab

129.

What type invertebrate are the animals that have 5 pairs of legs?

a)

Arachnids

b)

Crustaceans

c)

Insects

130.

What do you call this vertebrates that is known to feed their young with milk?

a)

Mammals

b)

Reptiles

c)

Amphibians

131.

Which of the following is an example of a fish?

a)
b)
c)
132.

Which is an example of a bird?

a)
b)
c)
133.

What vertebrate is the flatworm?

a)

Cnidarian

b)

Mollusk

c)

Platyhelminthes

134.

What invertebrate animal is a pinworm?

a)

Annelids

b)

Nematods

c)

Platyhelminthes

135.

Adding a second bulb in series in a circuit makes the bulbs glow . . . .

a)

brightly

b)

very brightly

c)

less brightly

d)

equally brightly

136.

What appliance can be used to convert electrical energy into movement?

a)

electric cookers

b)

hair dryers

c)

light bulbs

d)

radios

137.

A good . . . carries electricity well.

a)

appliance

b)

resistor

c)

conductor

d)

insulator

138.

Faulty circuits or broken appliances can cause electric shocks and . . . .

a)

fire

b)

flood

c)

earthquake

d)

eruption

139.

When something is rubbed, friction can give it an electric . . . .

a)

current

b)

shocks

c)

charge

d)

static

140.

A . . . is a piece of material that attracts iron and some other materials with an invisible force.

a)

pole

b)

field

c)

magnet

d)

wood

141.

Stroking a magnetic material with a magnet can produce . . . magnetism.

a)

temporary

b)

permanent

c)

transient

d)

momentary

142.

The needle of a . . . is magnetised, it swings to point north and can be used to find directions.

a)

clock

b)

watch

c)

compass

d)

machine

143.

In 1834, . . . and . . . were invented.

a)

code and Morse

b)

telephone and telegraph

c)

telephone and Morse

d)

telegraph and Morse

144.

Who was the inventor of the telephone?

a)

Alexander Graham Bell

b)

Samuel Morse

c)

James Watt

d)

Galileo Galilei

145.

+20 is the country code that belongs to . . . .

a)

England

b)

Russia

c)

Germany

d)

Egypt

146.

The Morse code above is the code for letter . . . .

a)

A

b)

I

c)

U

d)

E

147.

Modern computers use . . . to store and process information.

a)

Morse code

b)

country code

c)

binary code

d)

entry code

148.

A . . . has thousands of tiny circuits on a silicon chip.

a)

microscopic

b)

microscope

c)

Microsoft

d)

microprocessor

149.

The . . . is a collection of billions of pages of text, pictures, sounds and video clips stored on the Internet.

a)

World Wide World

b)

World Wide Web

c)

World Wide Weather

d)

World Wide Warehouse

150.

A substance made from a single type of atom is called . . . .

a)

particles

b)

molecules

c)

compound

d)

element

151.

A . . . is a group of two or more atoms held together by chemical bonds

a)

particles

b)

molecule

c)

compound

d)

element

152.

A substance made from two or more different elements linked together is called a . . . .

a)

particles

b)

molecule

c)

compound

d)

element

153.

A chemical reaction powered by an electric current is called . . . .

a)

electrolysis

b)

chemical reaction

c)

oxidised

d)

bonds

154.

An . . . is a base that dissolves in water.

a)

acid

b)

alkali

c)

salt

d)

neutralises

155.

An . . . is a substance that reacts with metals and base to produce a salt.

a)

acid

b)

alkali

c)

element

d)

indicator

156.

The majority of elements are . . . .

a)

alloys

b)

carbons

c)

metals

d)

duralumins

157.

A supercontinent, which has separated to become the continents we know today is called . . . .

a)

Mesozoic

b)

Eon

c)

Era

d)

Pangaea

158.

. . . are the scientist who study rocks.

a)

Meteorologist

b)

Gastronomist

c)

Geologist

d)

Alchemist

159.

The . . . era was the age of the dinosaurs.

a)

Mesozoic

b)

Cenozoic

c)

Paleozoic

d)

Periods

160.

. . . is the buried remains of a living thing that have turned to stone.

a)

Radioactivity

b)

Sedimentary

c)

Adapt

d)

Fossil

161.

How do we know how old the earth is?

a)

By measuring the fossil.

b)

By measuring the radioactivity of rocks.

c)

By studying the evolution of the elephants.

d)

By studying the life of dinosaurs.

162.

The scientists who measure the conditions that describe the weather is called . . . .

a)

Meteorologist

b)

Anthropologist

c)

Geologist

d)

Gastronomist

163.

What makes the wind blow?

a)

The differences of weather.

b)

The differences in air pressure.

c)

The differences of temperature.

d)

The differences of the wind speed.

164.

. . . are massive storms of swirling air.

a)

Weather

b)

Wind

c)

Cyclones

d)

Temperature

165.

When you breathe, the air enters your nose, it is filtered and cleaned by the hair called ________.

a)

villi

b)

cilia

c)

alveoli

d)

bronchi

166.

Which of the following that extends to the lungs?

a)

larynx

b)

pharynx

c)

trachea

d)

bronchi

167.

What part of respiratory system covers the entrance to the windpipe? It opens as the air enters the windpipe and closes when you swallow.

a)

trachea

b)

epiglottis

c)

alveoli

d)

bronchial tubes

168.

Each bronchiole leads to a tiny air sac called ________.

a)

bronchus

b)

larynx

c)

epiglottis

d)

alveolus

169.

It is composed of two tubes that are connected to our trachea and direct air to the lungs.

a)

bronchi

b)

trachea

c)

pharynx

d)

nasal cavity

170.

The lungs are enclosed in a coating called __________?

a)

cilia

b)

villi

c)

pleura

d)

epiglottis

171.

Which of the following is a muscle that controls our breathing?

a)

diaphragm

b)

Bronchioles

c)

nose

d)

lungs

172.

This is the outer part of the respiratory system that made out of cartilages.

a)

mouth

b)

nose

c)

lungs

d)

cilia

173.

It is also called throat that connects the nose and mouth.

a)

larynx

b)

pharynx

c)

trachea

d)

nasal cavity

174.

This is where the exchange of gases happens.

a)

lungs

b)

bronchi

c)

trachea

d)

alveoli

175.

The hair and mucus also warm and moisten the air that enters our body.

a)

TRUE

b)

FALSE

176.

During the exhalation the ribs and diaphragm relaxes.

a)

TRUE

b)

FALSE

177.

When we exhale, the diaphragm expands and move downward.

a)

TRUE

b)

FALSE

178.

Trachea is lined with mucus that help dust from entering the lungs.

a)

TRUE

b)

FALSE

179.

The main function of respiratory system is to distribute oxygen to the different parts of the body.

a)

TRUE

b)

FALSE

180.

It is a symbiotic relationship when one organism benefits and the other organism is being harmed

a)

Commensalism

b)

Mutualism

c)

Predation

d)

Parasitism

181.

The organism doing the capturing

a)

Prey

b)

Predator

c)

Producers

d)

Pet

182.

Identify the relationship of the tree and the Orchid plant

a)

Parasitism

b)

Mutualism

c)

Commensalism

d)

Predation

183.

A symbiotic relationship in which organisms fight/compete for food.

a)

Mutualism

b)

Predation

c)

Parasitism

d)

Competition

184.

The organism being captured.

a)

Prey

b)

Producer

c)

Pet

d)

Predator

185.

It is an interaction in which one organism kills another for food.

a)

Competition

b)

Predation

c)

Parasitism

d)

Mutualism

186.

It is a symbiotic relationship when one is being harmed and the other neither harm nor benefit

a)

Parasitism

b)

Mutualism

c)

Commensalism

d)

Predaton

187.

A symbiotic relationship when the two organisms benefit.

a)

Parasitism

b)

Mutualism

c)

Predation

d)

Competition

188.

What is the symbiotic relationship between man and plants?

a)

Parasitism

b)

Mutualism

c)

Commensalism

d)

Predation

189.

The symbiotic relationship between human and tapeworms

a)

Predation

b)

Competition

c)

Mutualism

d)

Parasitism

190.

Relationship between two deer fighting for a mate.

a)

Competition

b)

Predation

c)

Commensalism

d)

Mutualism

191.

What is the relationship between cheetah and zebra.

a)

Commensalism

b)

Predation

c)

Mutualism

d)

Parasitism

192.

The relationship between lion and deer

a)

Predation

b)

Commensalism

c)

Mutualism

d)

Competition

193.

The relationship between flowers and bees

a)

Parastism

b)

Mutualism

c)

Commensalism

d)

Predator

194.

Relationship between snake and rat

a)

Parasitism

b)

Commensalism

c)

Predation

d)

Competition

195.

It is force that pulls the objects downwards towards the center of the earth ?

a)

A. Friction

b)

B. Force

c)

C. Gravity

196.

It is force happens when two object rub together cause them to slow down ?

a)

A. Friction

b)

B. Force

c)

C. Gravity

197.

It is a push or pull of an object .

a)

A. Friction

b)

B. Force

c)

C. Gravity

198.

It is an example of lubricant.

a)

A. Oil

b)

B. Sand

c)

C. rubber

199.

What energy produce by vibrating objects ?

a)

A. Sound energy

b)

B. Radian energy

c)

C. Mechanical energy

200.

What energy is being release in a moving car ?

a)

A. Chemical energy

b)

B. Electrical energy

c)

C. Mechanical Energy

201.

______is a reflected sound ?

a)

A. Sound wave

b)

B. Frequency

c)

C. Echo

202.

____ is the greatest source of radian energy?

a)

A. Sun

b)

B. Microwaves

c)

C. Electricity

203.

____ refers to the amount of energy in sound ?

a)

A. Frequency

b)

B. Echoes

c)

C. Intensity

204.

What instrument used to measure the heat ?

a)

A. Calorimeter

b)

B. Kilocalorie

c)

C. helorimeter

205.

Multiple Choice: Check the correct answer.

1.Everything that has mass and occupies a space is called...

a)

matter

b)

mass

c)

atom

d)

molecules

206.

What state of matter does this picture show?

a)

solid

b)

gas

c)

liquid

d)

matter

207.

3. which is the particles of liquid..

a)
b)
c)
d)
208.

4. Which one is a Homogeneous?

a)

blood

b)

pizza

c)

salad

d)

gravel and sand

209.

5.What is a example of heterogeneous?

a)

lemonade

b)

coffee

c)

halo halo

d)

juice

210.

6.Making a mixture results in ___________________ only.

a)

chemical reactions

b)

separate parts

c)

two substances

d)

physical changes

211.

7.What is a mixture?

a)

elements chemically combined

b)

combination of different things

c)

it is found on the Periodic Table

d)

it is made of chemical

212.

8.What does it mean if a mixture is heterogeneous?

a)

you can see the different parts

b)

cannot tell one part from another

c)

very well blended

d)

made of element

213.

9. What does it mean if a mixture is homogeneous?

a)

you can see the different parts

b)

chunks of particles

c)

cannot tell one part from another

d)

made of elements

214.

10.A _______ is a mixture in which the composition is uniform throughout the mixture.

a)

homogeneous mixture

b)

heterogeneous mixture

c)

mixture

d)

elements

215.

What do you call the science that deals with bacteria?

a)

cytology

b)

bacteriology

c)

botany

d)

zoology

216.

It is an intelligent or an educated guess.

a)

QUALITATIVE

b)

QUANTITATIVE

c)

HYPOTHESIS

d)

INFERRING

217.

The investigatory processes help us to answer or solve problems ______________.

a)

smartly

b)

creatively

c)

actively

d)

systematically

218.

The study of plants.

a)

Zoology

b)

Botany

c)

Biology

d)

Paleontology

219.

Jillian list down the qualities of a new breed of rice planted on a farm. What investigatory process should Jillian must be use and follow?

a)

Comparison

b)

Classification

c)

Prediction

d)

Observation

220.

What is the chemical symbol of Potassium?

a)

Ar

b)

K

c)

C

d)

He

221.

Among the given choices, identify the 3 examples of element.

a)

Carbon dioxide

b)

Helium

c)

Krypton

d)

Beryllium

222.

Which of the following is NOT a physical change?

a)

grating a cheese

b)

melting a cheese

c)

fermenting of cheese

d)

mixing two cheese in a bowl

223.

Which of the following would be a chemical change?

a)

freezing water to make ice cubes

b)

melting gold to make jewelry

c)

burning gasoline in a lawnmower

d)

tearing a piece of aluminum foil

224.

A valid and successful experiment that is supported with a hypothesis must repeat several times to compare if the given results are the same. Which of the following steps in the scientific method should be required to do again?

a)

Gather information

b)

Test the hypothesis

c)

Draw conclusions

d)

Form a hypothesis

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