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LET REVIEW > SCIENCE DAY3 > Flashcards

SCIENCE DAY3 Flashcards

1
Q

Study of everything in the universe

A

Astronomy

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2
Q

ALL planets _______ around the sun in the same direction

A

Revolve

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3
Q

SOME planets ______ around its axis in the same direction

A

Rotate

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4
Q

Direction of revolution of planets

A

Eastward, west to east, counterclockwise

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5
Q

Planets in the solar system rotates on their axis in eastward direction/west to east/counterclockwise except

A

Venus and Uranus

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6
Q

Shape of orbit

A

Elliptical orbit

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7
Q

Fastest revolving/orbiting planet

A

Mercury

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8
Q

1 revolution of MERCURY is equals to ______ earth days

A

88

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9
Q

Brightest planet, hottest planet, earth’s closest neighboring planet

A

Venus

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10
Q

Only planet with life

A

Earth

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11
Q

Shape of Earth

A

Oblate Spheroid

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12
Q

Name of Earth’s moon

A

Luna

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13
Q

Red planet

A

Mars

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14
Q

Mars’ 2 moons

A

Phobos and Deimos

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15
Q

Location of asteroid belt

A

Between Mars and Jupiter

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16
Q

Terrestrial planets are made-up of

A

Rocks

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17
Q

What are the terrestrial planets

A

Mercury
Venus
Earth
Mars

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18
Q

What are the Gas/Jovian Planets

A

Jupiter
Saturn
Uranus
Neptune

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19
Q

Largest planet

A

Jupiter

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20
Q

Number of moons of JUPITER

A

92

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21
Q

4 Galilean Moons of Jupiter

A

Io
Europa
Ganymede
Callisto

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22
Q

Planet that has spectacular rings made of ice, rocks, dusts

A

Saturn

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23
Q

Number of moons of Saturn

A

83 moons

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24
Q

What is the largest moon of Saturn

A

Titan

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25
Q

Planets that are ICE GIANTS

A

URANUS
NEPTUNE

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26
Q

Dwarf planet

A

Pluto (1930-2006)

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27
Q

Pluto is found in the

A

Kuiper Belt

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28
Q

5 moons of pluto

A

Charon, Nix, Hydra, Kerberos, Styx

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29
Q

Earth’s moon is ______ of the Earth’s gravity

A

1/6

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30
Q

Earth’s moon is _____ of the Earth’s size

A

1/4

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31
Q

What do you call the same side of the moon is always facing the Earth

A

Tidal lock

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32
Q

How many phases does the moon have

A

8 or 4

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33
Q

Type of eclipse Earth’s shadow fall on the moon

A

Lunar eclipse

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34
Q

Type of eclipse

🌞🌍🌚

A

Lunar eclipse

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35
Q

Type of eclipse
Moon’s shadow fall on the Earth

A

Solar Eclipse

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36
Q

Type of eclipse
🌞🌚🌍

A

Solar eclipse

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37
Q

Highest tide and lowest tide

A

Spring tide

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38
Q

Have lower high tides and higher low tides

A

Neap tides

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39
Q

What cause tides

A

Gravity of the moon

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40
Q

Distance of moon and earth

Moon closest to the earth

A

Perigee

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41
Q

Distance of moon and earth

Moon farthest from the earth

A

Apogee

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42
Q

Lunar missions

First successful manned mission to the moon

A

Apollo 11

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43
Q

Lunar missions

First men on moon (July 16, 1969)

A

Neil Armstrong
Buzz Aldrin
(Michael Collins)

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44
Q

A medium-sized star that has a white color

A

Sun

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45
Q

H + H = He + energy

What is this called

A

Nuclear fusion

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46
Q

Distance of sun and earth

Sun is closest to the earth

A

Perihelion

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47
Q

Distance of sun and earth

Sun is farthest from the earth

A

Aphelion

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48
Q

Small debris chipped off from an asteroid

A

Meteoroid

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49
Q

What do you call the asteroid when it enters the atmosphere

A

Meteor

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50
Q

What do you call the asteroid when it hits the land

A

Meteorite

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51
Q

Small body of rock, iron, ICE, methane, ammonia, carbon dioxide that orbit the sun (long-haired)

A

Comets

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52
Q

Comet’s tail points

A

Points away from the sun

53
Q

Halley’s comet appears every _____ years

A

76

54
Q

A ball of hydrogen and helium

A

Star

55
Q

Hottest star color

A

Blue

56
Q

Coolest star color

A

Red

57
Q

Group of stars forming recognizable pattern

A

Constellation

58
Q

Nearest star

A

Proxima centauri

59
Q

Brightest star

A

Sirius

60
Q

Polaris of the Ursa Minor (little bear)

A

Northern star

61
Q

Largest known star

A

Stephenson 2-18

62
Q

Appearance of first dinosaurs and mammals

A

Triassic period

63
Q

Age of dinosaur

A

Jurassic Period

64
Q

Called solid earth

A

Lithosphere

65
Q

Earth’s surface, outermost layer of the earth

A

Crust

66
Q

Layer of earth that is rocky, made up of Si, O, Fe, Mg, Ca

A

Mantle

67
Q

Lithosphere includes

A

Crust + upper mantle

68
Q

Innermost central part of the earth

A

Core

69
Q

The liquid outer core is primarily made up of

A

Iron and nickel

70
Q

The inner core is primarily made up of

A

Iron and is solid

71
Q

The super continent in the theory of Alfred Wegener

A

Pangea

72
Q

Theory of Alfred Wegener that the evidence is the jigsaw-like shapes of South America and Africa

A

Continental Drift Theory

73
Q

Any movement of the ground due to volcanic eruption and tectonic plate

A

Earthquake

74
Q

Foreshock happens

A

Before

75
Q

Mainshock happens

A

During/Strongest

76
Q

Aftershock happens

A

After

77
Q

The point of origin where the movement of fault happens

A

Focus

78
Q

The place above the focus

A

Epicenter

79
Q

Measurement of energy released by the earthquake

A

Magnitude

80
Q

The damage produced and the reaction of people (earthquake)

A

Intensity

81
Q

What do you call the instrument to measure the magnitude of an earthquake

A

Richter scale

82
Q

Who invented the Richter scale

A

Charles Richter

83
Q

What is the instrument used to measure the intensity of an earthquake

A

Mercalli intensity scale

84
Q

A naturally occurring inorganic crystalline composed of an ordered arrangement of atoms with a specific chemical composition

A

Mineral

85
Q

It means resistance to scratch

A

Hardness

85
Q

In Moh’s scale of hardness what is the hardest

A

Diamond

86
Q

In Moh’s scale of hardness what is the number 1 not so hard

A

Talc

86
Q

Can be generally classified into igneous, sedimentary, and metamorphic

A

Rocks

87
Q

Type of rock that Is formed from hardened magma or lava (crystallization)

A

Igneous rock

88
Q

Type of rock that is formed by the layers of sediments (lithification)

A

Sedimentary rock

89
Q

Coal is an example of what type of rock

A

Sedimentary rock

90
Q

Under coal Decayed vegetation

A

Peat

91
Q

Soft brown coal (lowest rank of coal)

A

Lignite

92
Q

Type of coal
Black coal

A

Bituminous

93
Q

Type of coal
Dark, black coal, having highest-heat value among the four

A

Anthracite

94
Q

Type of rock is formed from when rocks are subjected to heat and pressure

A

Metamorphic rock

95
Q

What do you call the breaking of rocks

A

Weathering

96
Q

What do you call the removal of solids (other particles) usually occurs due to transport by wind and water

A

Erosion

97
Q

_______ of Earth is submerge with water

A

3/4 or 75%

98
Q

FIVE OCEANS (LARGEST-SMALLEST)

A

PACIFIC OCEAN
ATLANTIC
INDIAN
SOUTHERS (ANTARTICA)
ARCTIC

99
Q

deals with the study of the atmosphere

A

METEOROLOGY

100
Q

Layers of ATMOSPHERE

A

TROPOSPHERE
STRATOSPHERE
MESOSPHERE
THERMOSPHERE
EXOSPHERE

101
Q

lowermost layer of the atmosphere

A

Troposphere

102
Q

layer of the atmosphere where most weather occur

A

Troposphere

103
Q

is the layer of the atmosphere where ozone layer is found

A

Stratosphere

104
Q

what protects us against UV rays

A

ozone layer

105
Q

what destroys ozone layer

A

chlorofluorocarbons (CFC’s)

106
Q

CFC’s are replaced by alternative chemicals called

A

hydrofluorocarbons

107
Q

coldest layer of the atmosphere

A

mesosphere

108
Q

layer of the atmosphere where meteors burnt up

A

mesosphere

109
Q

hottest layer of the atmosphere

A

thermosphere

110
Q

layer of the atmosphere where AURORAS (Australis-southern, Borealis-northern) are observed

A

thermosphere

111
Q

the outermost layer of the atmosphere

A

exosphere

112
Q

the Earth’s magnetic field, protects the Earth from dangerous charged particles (solar flares and solar winds)

A

MAGNETOSPHERE

113
Q

typhoons form in the

A

PACIFIC OCEAN

114
Q

CYCLONES form in the

A

INDIAN OCEAN

115
Q

HURRICANES form in the

A

ATLANTIC OCEAN

116
Q

these are made of water and are classified based on their SHAPE and ALTITUDE

A

CLOUDS

117
Q

what clouds that bring thunderstorms

A

CUMULONIMBUS

118
Q

these are seasonal changes due to changing winds

A

Philippine Monsoons

119
Q

northeast monsoon
September to June (cold and dry)

A

AMIHAN

120
Q

southwest monsoon
July-August (warm and humid)

A

HABAGAT

121
Q

this is caused by NOx (nitrogen oxide) and SOx (sulfur oxide)

A

acid rain

122
Q

thermal blanket

A

greenhouse effect

123
Q

accumulation of carbon dioxide and other gases which causes trapping of heat from the sun

A

greenhouse effect

124
Q

caused by an increased of carbon dioxide in the atmosphere resulted in a rapid increase in temperature

A

global warming

125
Q

water pollution: the source is easily identified through pipelines from large factories, septic tanks, and others that directly pour wastes into bodies of water

A

point source pollution

126
Q

water pollution: the source of water pollution either cannot be identified or may come from many sources

A

non-point source pollution

127
Q

algal boom occurs because of the high nutrients in the water. eventually, oxygen concentration is reduced because of the decomposition of dead algae

A

eutrophication
hypertrophication

LET REVIEW (33 decks)

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