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Worksheets

HCAI Quizzers (Science)

Total questions: 80

Worksheet time: 27mins

Name
Class
Date
1.

Which is the most abundant gas in the earth's atmosphere?

a)

Nitrogen

b)

Carbon

c)

Argon

d)

Oxygen

2.

What is the total number of bones in the human body at birth?

a)

196

b)

206

c)

270

d)

512

3.
Which layer of the earth is the thinnest? 
a)
Mantle
b)
Inner Core
c)
Outer Core
d)
Crust
4.
If Marble is a rock that has large crystals and formed by exposure to high heat and pressure, what type of rock is it?  
a)
Igneous
b)
Metamorphic
c)
Sedimentary
d)
Sediment
5.

What type of plate boundary that two or more lithospheric plates collide?

a)

convergent

b)

divergent

c)

transform

d)

transversal

6.
If an animal runs for 2 hours and covers 14 kilometers, what was the average speed of the animal? 
a)
1.5 km/h
b)
7.0 km/h
c)
13 km/h
d)
30 km/h
7.

What tool would a meteorologist use to determine the change in air pressure?

a)

wind mill

b)

barometer

c)

weather vane

d)

sun compass

8.

The one day of the year with the longest amount of sunlight is:

a)

vernal equinox

b)

summer solstice

c)

summer equinox

d)

winter solstice

9.
During which season is the northern hemisphere tilted toward the Sun?
a)
Summer
b)
Fall
c)
Winter
d)
Spring
10.
Which planet has the most moons?
a)
Jupiter
b)
Earth
c)
Saturn
d)
Mars
11.

Which scientists was responsible for coining the phrase “Big Bang?”

a)

Fred Hoyle

b)

Albert Einstein

c)

Georges Lemaitre

d)

Edwin Hubble

12.

What is the last phase of mitosis?

a)

Prophase

b)

Metaphase

c)

Anaphase

d)

Telophase

13.

Susan pushes against a 100 kilogram rock with a force of 5 Newtons, but the rock doesn't move. The force the rock exerts on Susan is ______________.

a)

0 Newtons

b)

5 Newtons

c)

20 Newtons

d)

100 Newtons

14.

Which of the following scientists was awarded the Nobel Prize in 1911 for the discovery of the radioactive elements, radium and polonium?

a)

John Dalton

b)

Dmitri Mendeleev

c)

Emil Fischer

d)

Marie Curie

15.

What is the name of the closest star to our solar system?

a)

Rigil Kentaurus

b)

Wolf 359

c)

Proxima Centuri

d)

Sirius A and B

16.

What year did Neil Armstrong walk on the moon?

a)

1969

b)

1957

c)

1972

d)

1963

17.

Who is the first woman in space?

a)

Valentina Tereshkova

b)

Sally Ride

c)

Peggy Whitson

d)

Svetlana Savitskaya

18.

What was the name of the first animal sent into space?

a)

Albert

b)

Alwin

c)

Laika

d)

Lucy

19.

What was the name of the first man-made satellite sent into space?

a)

Voyager I

b)

Sputnik I

c)

SkyLab

d)

Apollo

20.

Convert 88 kg to mg

a)

8.8 mg

b)

88000 mg

c)

0.0000088 mg

d)

88000000 mg

21.

Which of the following terms identifies the change from a solid to gas?

a)

deposition

b)

sublimation

c)

condensation

d)

recombination

22.

Which group contains the Noble gases?

a)

15

b)

16

c)

17

d)

18

23.

In what layer of the Earth’s atmosphere does most of our weather occur?

a)

mesosphere

b)

troposphere

c)

stratosphere

d)

thermosphere

24.

What is the normal pH of human blood?

a)

6.0

b)

5.5

c)

7.4

d)

8.1

25.

What is the Latin name for Silver?

a)

Stannum

b)

Aurum

c)

Argentum

d)

Hydrargyrum

26.

What vascular tissue brings water and minerals to the leaves?

a)

phloem

b)

xylem

c)

cambium

d)

rhizomes

27.

Approximately how many different types of cells make up the human body?

a)

200

b)

120

c)

80

d)

50

28.

How many chromosomes per cell does a Down's Syndrome victim have?

a)

44

b)

45

c)

46

d)

47

29.

The random movement of particles in solution toward a uniform distribution is termed ___________.

a)

osmosis

b)

repulsion

c)

diffusion

d)

facilitated diffusion

30.

Octopus and squid belong to the class of mollusks known as __________.

a)

cephalopoda

b)

bivalvia

c)

gastropoda

d)

polyplacophora

31.

In which of the branches of chemistry would the development of a theory about how a reaction takes place best be carried out?

a)

analytical

b)

inorganic

c)

organic

d)

physical

32.

Who invented the battery?

a)

Alessandro Volta

b)

Pierre Curie

c)

Thomas Edison

d)

Nikola Tesla

33.

All systems of measurement use the same units for which of the following?

a)

mass

b)

time

c)

force

d)

volume

34.

In a photosynthesis reaction, chlorophyll is a/an ___________.

a)

reactant

b)

product

c)

catalyst

d)

intermediate

35.

Mayonnaise is an example of a/an _________________.

a)

coalescent solution

b)

hydrogenated oil

c)

covalent solution

d)

emulsion

36.

The inventor of the Kelvin temperature scale was ____________.

a)

K. Cavendish II

b)

Lord William H. Harrison

c)

Sir William Thomson

d)

Daniel Gabriel Fahrenheit

37.

Hydrocarbons that contain a triple bond between carbon atoms are known as _______________.

a)

aromatic

b)

alkenes

c)

alkynes

d)

alkanes

38.

How many atoms of oxygen are in a glucose molecule?

a)

2

b)

6

c)

10

d)

12

39.

Pure water is approximately in what molar concentration?

a)

0.555 mol/L

b)

5.55 mol/L

c)

55.5 mol/L

d)

550 mol/L

40.

Among the following, the substance that is considered to be the earliest stage in coal formation is ______________.

a)

sub-bituminous

b)

bituminous

c)

anthracite

d)

lignite

41.

In the periodic table, which of the following identifies a horizontal row?

a)

period

b)

group

c)

family

d)

series

42.

Which of the following is the element represented by the symbol B?

a)

Barium

b)

Bismuth

c)

Boron

d)

Beryllium

43.

A Poise is the unit of measure of which of the following?

a)

pressure

b)

viscosity

c)

force

d)

mass

44.

A solution with a pH of 12 is __________.

a)

weakly acidic

b)

strongly acidic

c)

weakly basic

d)

strongly basic

45.

If a biker traveled at an average speed of 3 meters/second for 100 seconds, the length of the biker’s path was about ____________.

a)

33.33 meters

b)

300 meters

c)

103 meters

d)

97 meters

46.

Which of the following moves in the form of a longitudinal compression wave?

a)

ocean wave

b)

light wave

c)

sound wave

d)

electromagnetic wave

47.

A series of amino acids joined together will make _____________.

a)

polysaccharide

b)

deoxyribonucleic acid

c)

sugar

d)

protein

48.

Zinc, an element, has an atomic number of 30 and an atomic weight of 65.38. This means it must have ______________.

a)

30 electrons, 35 protons, 30 neutrons

b)

35 electrons, 30 protons, 30 neutrons

c)

35 electrons, 35 protons, 30 neutrons

d)

30 electrons, 30 protons, 35 neutrons

49.

The disappearance of the dinosaurs also marks the end of which geological era?

a)

Precambrian

b)

Cambrian

c)

Mesozoic

d)

Cenozoic

50.

Which of the following areas is closest to the total surface area of the earth in square kilometers?

a)

500 million

b)

5 million

c)

500 billion

d)

5 billion

51.

Which of the following is the name of the partly melted rock layer on which the plates move?

a)

lithosphere

b)

hydrosphere

c)

asthenosphere

d)

outer core

52.

The mineral halite is ___________.

a)

potassium chloride

b)

calcium chloride

c)

sodium chloride

d)

calcium bromide

53.

Which of the following is an igneous rock?

a)

Granite

b)

Shale

c)

Slate

d)

Coal

54.

Which of the following terms is used to describe the appearance of a mineral in transmitted light?

a)

diaphaneity

b)

opaqueness

c)

translucence

d)

porosity

55.

What percentage of the earth's atmosphere does O2 comprise?

a)

75%

b)

21%

c)

50%

d)

32%

56.

Hippocrates is traditionally considered to be the father of which branch of science?

a)

Anthropology

b)

Sociology

c)

Medicine

d)

History

57.

Who discover the proton?

a)

J.J. Thompson

b)

Ernest Rutherford

c)

Eugen Goldstein

d)

James Chadwick

58.

This process is responsible for energy generation in stars and is used in hydrogen bombs.

a)

Nuclear Fusion

b)

Nuclear Reaction

c)

Nuclear Fission

d)

Nuclear Energy

59.

The union of an ovum and sperm inside a test tube is _________.

a)

Sexual Reproduction

b)

In Vivo Fertilization

c)

In Vitro Fertilization

d)

In Silico Fertilization

60.

The protein shell of a virus is called _________.

a)

virion

b)

nucleolus

c)

capsid

d)

cytoplasm

61.

Which 2 chemical factors cause decomposition?

a)

Putrefaction and respiration

b)

Autolysis and putrefaction

c)

Autolysis and photosynthesis

d)

Death and cellular respiration

62.

An important endocrine gland that is shaped like a bow-tie and located in the neck is called ____________.

a)

pituitary gland

b)

adrenal gland

c)

thyroid gland

d)

pineal gland

63.

Which organism is an example of a fungus use in raising a bread?

a)

Algae

b)

Yeast

c)

Euglenoids

d)

Entamoeba

64.

What is the first micro-satellite launched by the Philippines?

a)

Divina

b)

Diwata

c)

Bathaluman

d)

Babaylan

65.

Which of the following correctly lists electromagnetic waves in order from longest to shortest wavelength?

a)

television, infrared, visible light, x-rays

b)

radiowaves, infrared, gamma rays, ultraviolet

c)

gamma rays, ultraviolet, infrared, microwaves

d)

microwaves, ultraviolet, visible light, gamma rays

66.

What is the process in removing excess odor in water?

a)

sedimentation

b)

chlorination

c)

aeration

d)

distillation

67.

The term RADAR is derived from the phrase?

a)

Radio Detection and Ranging

b)

Radiation Diffusion and Ranging

c)

Radio Diffraction and Resolution

d)

Radiation Diffraction and Resolution

68.

The average temperature was recorded at 35 degrees C. What is the equivalent in Kelvin?

a)

308

b)

300

c)

273

d)

360

69.

Which of the following planets rotates in retrograde?

a)

Mars

b)

Jupiter

c)

Venus

d)

Neptune

70.

If a voltage of 100 volts produces a current of 5 amperes in an electrical device, what is the resistance?

a)

95 Ohms

b)

20 Ohms

c)

105 Ohms

d)

500 Ohms

71.

Robert Edwin Peary claimed to be the first person to reach what location?

a)

Moon

b)

North Pole

c)

Marianas Trench

d)

Summit of Mount Everest

72.

When a plant cell is placed in a hypertonic solution, the plant cell will ____________.

a)

expand

b)

rupture

c)

shrink

d)

not affected

73.

The point in the Earth’s orbit when the Earth is the closest from the sun is called ___________.

a)

perihelion

b)

aphelion

c)

apogee

d)

perigee

74.

The muscle which is under involuntary control is ___________.

a)

striated

b)

skeletal

c)

smooth

d)

streched

75.

In the human brain, body temperature, metabolism, heart rate, sexual development, sleep and the body's use of fat and water are influenced by this region of the brain.

a)

hypothalamus

b)

medulla oblongata

c)

corpus callosum

d)

cerebellum

76.

What is the largest internal organ of the human body?

a)

skin

b)

heart

c)

liver

d)

brain

77.

What is the scientific study of fishes?

a)

Ornithology

b)

Ichthyology

c)

Entomology

d)

Phycology

78.

A volcano which is composed of lava flows and pyroclastic material and which is steep-sided and very tall is known as ____________.

a)

Cinder Cone

b)

Fissure

c)

Shield

d)

Composite

79.

This law states that the force acting upon an object is equal to the product of the mass and acceleration of the object.

a)

Newton’s 2nd law of motion

b)

Newton’s 3rd law of motion

c)

Newton’s 1st law of motion

d)

None of the choices

80.

What is the term for tropical storm in South Pacific and Indian Ocean?

a)

Hurricane

b)

Cyclone

c)

Typhoon

d)

Whirl