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Science Challenge

Total questions: 81

Worksheet time: 53mins

Name
Class
Date
1.

What is the powerhouse of the cell?

a)

Mitochondria

b)

Ribosome

c)

Nucleus

d)

Endoplasmic reticulum

2.

What is the chemical symbol for gold?

a)

Ag

b)

Hg

c)

Fe

d)

Au

3.

What is the SI unit for measuring force?

a)

meter

b)

newton

c)

joule

d)

kilogram

4.

What is the process by which plants make their own food?

a)

Photosynthesis

b)

Transpiration

c)

Respiration

d)

Fermentation

5.

What is the study of the Earth's atmosphere and weather?

a)

Astronomy

b)

Meteorology

c)

Geology

d)

Biology

6.

What is the process of using evidence to learn about the natural world?

a)

Magic trick

b)

Guessing game

c)

Random selection

d)

Scientific method

7.

What is the largest organ in the human body?

a)

liver

b)

heart

c)

stomach

d)

skin

8.

What is the chemical formula for water?

a)

NaCl

b)

CO2

c)

HCl

d)

H2O

9.

What is the law of conservation of energy?

a)

Energy can be destroyed and created at will

b)

Energy cannot be created or destroyed, only transformed from one form to another.

c)

Energy is not conserved and can disappear

d)

Energy can only be transformed into matter

10.

What is the study of matter and its changes?

a)

Physics

b)

Geology

c)

Chemistry

d)

Biology

11.

What is the force that pulls objects towards the center of the Earth?

a)

magnetism

b)

friction

c)

gravity

d)

wind

12.

What is the process of one plate going under another plate?

a)

Deposition

b)

Erosion

c)

Volcanism

d)

Subduction

13.

What is the study of the interactions between organisms and their environment?

a)

Chemistry

b)

Physics

c)

Biology

d)

Ecology

14.

What is the first step in the scientific method?

a)

Review the results

b)

Make an observation or ask a question

c)

Conduct an experiment

d)

Form a hypothesis

15.

What is the process of the Earth's outer layer breaking into pieces?

a)

Earthquake

b)

Volcanic eruption

c)

Plate tectonics

d)

Global warming

16.

What is the process of using a control group in an experiment?

a)

Comparing the results of the control group with the experimental group

b)

Using the control group as the only group in the experiment

c)

Randomly selecting the control group after the experiment

d)

Ignoring the results of the control group

17.

What is the study of the composition, structure, properties, and changes of matter?

a)

Geology

b)

Biology

c)

Physics

d)

Chemistry

18.

What is the force that opposes the motion of an object?

a)

Acceleration

b)

Gravity

c)

Friction

d)

Inertia

19.

What is the process of using a hypothesis to make predictions?

a)

Random experimentation

b)

Magical thinking

c)

Scientific reasoning or the scientific method

d)

Guessing and checking

20.

What is the study of the properties and behavior of matter and energy?

a)

Biology

b)

Chemistry

c)

Geography

d)

Physics

21.

In what moon phase are you unable to see the moon at night?

a)

Full Moon

b)

First Quarter

c)

New Moon

d)

Last Quarter

22.

Which organ system do your lungs belong to?

a)

Digestive System

b)

Respiratory System

c)

Nervous System

d)

Muscular System

23.

High pitch sounds have__________.

a)

Low frequencies

b)

High frequencies

c)

No frequency

d)

High amplitudes

24.

Which electromagnetic waves have the LONGEST wavelength?

a)

Gamma Rays

b)

Ultraviolet (UV) Rays

c)

Infrared Rays

d)

Radio Waves

25.

Which era is known as "the age of reptiles?"

a)

Mesozoic Era

b)

Cenozoic Era

c)

Paleozoic Era

d)

Precambrian Era

26.

A nerve ending that sends signals to the central nervous system when it is activated...

a)

nerve cell

b)

sensory receptor

c)

telephone

d)

stimulus

27.

Which of the following is an activity of preservation of living thing?

a)

Replanting harvested vegetables

b)

Reducing plants-based products

c)

Diversifying plant-based products

d)

Gazetting forests as logging-restricted areas.

28.

It's one of the best conductors of heat and electricity...

a)

Plastic

b)

Glass

c)

Copper

d)

Light

29.

How old do scientists infer the Earth is?

a)

4,500 years old

b)

45,000 years old

c)

4.5 million years old

d)

4.5 billion years old

30.

Which of the following occurs because of convection current?

a)

The mantle increases in size.

b)

Pressure in the crust increases.

c)

Tectonic plates on the crust move.

d)

Pressure in the crust decreases.

31.

When matter loses energy (gets cooler), how does that affect density?

a)

The matter becomes less dense.

b)

The matter becomes more dense.

c)

Density isn't affected.

32.
Natural vibrations of the ground caused by the stress and strain of plate movement are called
a)
earthquakes
b)
volcanoes
c)
tremors
d)
shakes
33.

There is a full moon on February 27th. About when will the next full moon occur?

a)

March 1st

b)

March 10th

c)

March 21st

d)

March 27th

34.

What is an example of condensation?

a)

Seeing your breath outside on a cold day

b)

Clothes drying outside

c)

Steam coming from a boiling pot of water

d)

Rain falling outside of your window

35.

What energy source powers the water cycle?

a)

Solar Pannel

b)

Natural Gas

c)

Wind Turbines

d)

The Sun

36.

What type of erosion was a factor of the Dust Bowl?

a)

Water

b)

Wind

c)

Ice

37.

Which physicists whom is famous for the concept of gravity?

a)

Neils Bohr

b)

Thomas Eddison

c)

Nikola Tesla

d)

Isaac Newton

38.

What is the hardest natural substance that exists in earth?

(a)  

39.

What is motion?

a)

the way in which an object changes its position or location.

b)

the way an object moves

c)

the energy of an object

40.
The picture shows sunlight shining on solar panels. 
Which statement best describes this energy source?
a)
Sunlight is a renewable energy source used to produce hydropower.
b)
Sunlight is a nonrenewable energy source used to produce nuclear power.
c)
Sunlight is a renewable energy source used to produce electricity.
d)
Sunlight is a nonrenewable energy source used to produce natural gas.
41.

“A rounded mass of chewed food”

is a definition of…

a)

Tooth

b)

Tongue

c)

Bolus

d)

Lips

42.

“Involuntary movements” produced by muscles inside the Esophagus are called…

a)

Swallowing

b)

Peristalsis

c)

Digestion

d)

Chewing

43.

Inside the stomach, the "Bolus" is mixed with gastric juices and becomes a thick liquid called…

a)

Chyme

b)

Acid

c)

Water

d)

Milk

44.

What instrument is used to measure and record the vibrations of seismic waves?

a)

Seismogram

b)

Seismograph

c)

Richter Graph

d)

Mercalli Graph

45.

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

46.

What does the northeast monsoon bring to the Philippines?

a)

cold and dry air

b)

cold and humid

c)

dry season

d)

wet season

47.

What factor influences the season of the Philippines?

a)

Altitude

b)

Air mass

c)

Temperature

d)

Prevailing Winds

48.

What kind of season is characterized by a pronounced rainy season with thunderstorms and starts in June then falls slowly toward the end of the year?

a)

Dry season

b)

Monsoon

c)

Wet season

d)

Snow

49.

What wind system brings heavy rainfall to the western coastal area of the Philippines from June to September?

a)

Northeast Monsoon

b)

Easterlies

c)

Southwest monsoon

d)

ITCZ

50.

The deflection of the wind from poles to the equator or vice-versa is caused by _________________.

a)

Rotation of the earth

b)

revolution of the earth

c)

Tilting of the earth's axis

d)

revolution of the moon around the earth

51.

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.

52.

Who invented the first functional telephone?

a)

Albert Einstein

b)

Nikola Tesla

c)

Thomas Alva Edison

d)

Alexander Graham Bell

53.

What is Earth’s only natural satellite?

a)

Sun

b)

Mars

c)

Venus

d)

Moon

54.

Which nutrient plays an essential role in muscle-building?

a)

Protein

b)

Carbohydrate

c)

Iron

d)

Fat

55.

Earth is surrounded by layers of gases collectively called the _____.

a)

Hydrosphere

b)

Stratusphere

c)

Atmosphere

d)

Ozone Layer

56.

Similar body cells group together to form a/an ___.

a)

Cell

b)

Tissue

c)

Organ

d)

Organ Systems

57.

The standard unit of measurement for energy is ____.

a)

Newton (N)

b)

Ampere (A)

c)

Watt (W)

d)

Joule (J)

58.

Yeast is a type of ____.

a)

Plant

b)

Animal

c)

Bacterium

d)

Fugus

59.

Where is the focus with respect to the epicenter ?

a)

directly below the epicenter

b)

directly above the epicenter

c)

in the P wave shadow zone

d)

in the S wave shadow zone

60.

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

a)

myocardium

b)

pericardium

c)

septum

d)

thrombocytes

61.

This is the green coloring pigment in the leaves of plants

a)

Chlorophyll

b)

Chloroform

c)

Chlorine

d)

Chlorouflorocarbons

62.

Which of the following planets has no moon?

a)

Mars

b)

Venus

c)

Earth

d)

Pluto

63.

Easy

1. Which of the following is NOT a factor in the production of sound?

a)

Vibrating Body

b)

Medium

c)

Receiver

d)

Temperature

64.

Easy

3. Which is Not a basic part of an atom?

a)

Protons

b)

Cellulose

c)

Electrons

d)

Neutrons

65.

Easy

4. Which organisms are known as the "decomposers" in the community that breakdown dead plants and animals?

a)

Bacteria

b)

Fungi

c)

Algae

d)

Virus

66.

Easy

5. What is the smallest fundamental unit and structure in living organisms?

a)

Organelle

b)

Organs

c)

Cell

d)

Tissue

67.

Average

7. Who is the father of Genetics?

a)

Dmitri mendeleev

b)

Albert Einstein

c)

Gregor Mendel

d)

Wilhelm Roentgen

68.

What melted rock eventually becomes lava?

a)

comet

b)

asteroid

c)

magma

d)

pebbles

69.

When the moon appears to block the sun, as seen from Earth, what is the event called?

a)

Summer Solstice

b)

Lunar Eclipse

c)

Solar Eclipse

d)

Winter Solstice

70.

The instrument used to measure moisture in the atmosphere is

a)

Barometer

b)

Hydrometer

c)

Hygrometer

d)

Anemometer

71.

Who is the inventor of Steam Engine?

a)

Michael Faraday

b)

James Watt

c)

William Murdock

d)

Graham Bell

72.

Who is the father of Biology?

a)

Archimedes

b)

Gustav Fencher

c)

Aristotle

d)

Vesalius

73.

What type of wave is a sound wave?

a)

Longitudinal

b)

Electromagnetic

c)

Transverse

74.

What do you call the growth of plants in response to the condition of the environment?

a)

vertical growth

b)

tropism

c)

horizontal growth

d)

linear growth

75.

Weathered pieces of rock.

a)

pebbles

b)

sediment

c)

eroded

d)

shale

76.

Buried remains of ancient plants and animals that we now use as fuel.

a)

hydrocarbons

b)

alternative energy

c)

fossil fuels

d)

sediment

77.

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

a)

erosion

b)

weathering

c)

cementation

d)

deposition

78.

Wind or water carrying away weathered pieces of sediment.

a)

deposition

b)

weathering

c)

erosion

d)

cementation

79.

Eroded sediment finds a new home.

a)

weathering

b)

deposition

c)

compaction

d)

cementation

80.

AVERAGE ROUND: 7. It is a type of pigment that gives color to the hair ,skin and eyes in humans and animals

a)

A. Dermis

b)

B. Epidermis

c)

C. Melanin

d)

D. Hypodermis

81.

EASY ROUND: 4. What is responsible for picking up the oxygen in lungs and carrying it to all the body cells that need it?

a)

A. red blood cells

b)

B. ventricle

c)

C. white blood cells

d)

D. large intestines

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