1) To what biome do the Philippines belong to? a) tropical rainforest  b) tundra  c) dipterocarp forest  d) grassland 2) Tides, caused by gravity, is gradually slowing down earth’s rotation speed. A million years from now, scientists predict that earth’s __________________. a) day is longer  b) year is shorter  c) day is shorter  d) year is longer 3) On the earth’s geographical location will a town be to have most nearly twelve hours of light and twelve hours darkness during winter? a) halfway between the equator and South pole  b) close to North Pole  c) close to equator  d) close to the South Pole 4) Which one explains why oxygen, a gas, is largest component of the earth’s crust? a) oxygen gives earth crust its lightness  b) oxygen is capable of combining with most of the earth’s elements c) oxygen is the most abundant element  d) oxygen is needed to sustain all life on earth 5) To earth scientist, the most important features on the map are the landforms that shape the earth’s surface and are shown in? a) hydrographic map  b) geologic map  c) political map  d) topographic map 6) What causes high and low tides? a) earth’s rotation on its’ axis  b) sun’s solar energy  c) moon’s gravitational pull  d) earth’s gravitational pull 7) How is coral atoll formed? a) volcanic eruptions  b) corals growing around a volcanic island  c) underwater bedrock formations  d) earthquake 8) What is the longshore drift? a) movement of sand and shingles along the coast b) accumulation of sand  c) island formed by volcanic eruption d) sand bars 9) How does an occlusion form? a) cold air moving up from the ground  b) cold front pushing warm air up off the ground  c) unbalanced electrical reaction in air  d) cold and warm air mixing 10) What is heat haze? a) A reflection caused by pollutants in the air  b) A distorted image resulting from the bending of the sun’s light rays by changes in air temperature  c) movement of warm air over a vast expanse of land  d) caused by extremely high temperature common of dessert areas 11) What sort of rock formation do the world’s greatest mountain ranges consist of? a) magma  b) chalk deposits  c) fold eruptions  d) slip formation 12) What is the force that wears down mountains? a) earthquake  b) erosion  c) volcanic eruptions  d) deforestation 13) How are volcanic islands formed? a) collision of two oceanic plates  b) volcanic eruptions  c) cooling of lava by seawater  d) Accumulation of corals 14) When you pass orange fruit from tetra pack into a glass, the juice changes its? a) volume  b) shape  c) state  d) all of the above 15) The amount of water vapour air can hold at a certain temperature without any change in state. a) relative humidity  b) water capacity  c) water holding capacity  d) water pressure 16) A relative humidity of 20% mean air ________________________. a) is filled with water vapour  b) can hold 25% more water vapour  c) is filled up to 25% of its’ capacity d) has no water vapour content 17) Which of the following does not cause the different seasons? a) tilting of the earth’s axis  b) rotation  c) revolution  d) evolution 18) The movement of the ocean water which can be alternative source of energy or power a) waves  b) tides  c) gravitational force  d) earth’s rotation 19) When water vapour reaches this temperature, condensation takes place a) saturation point  b) dew point  c) condensation point  d) precipitation point 20) Results in alternative days and nights in opposite parts of the earth a) earth rotates on its’ axis in west to east direction b) earth rotates on its’ axis in east to west direction c) earth stops rotating on its’ axis d) earth tilts on its’ axis 21) The falling of any form of water from the air to the earth’s surface. a) condensation  b) precipitation  c) water vapour  d) humidity 22) The part of the atmosphere that filters the ultraviolet rays of the sun. a) stratosphere  b) troposphere  c) ozone layer  d) ionosphere 23) The point of the earth’s orbit nearest the sun. a) solstice  b) eclipse  c) aphelion  d) perihelion 24) The property of the minerals which give off rays of light when exposed to ultraviolet light. a) luminescence  b) phosphorescence  c) radiation  d) fluorescence 25) Which of the following involves chemical weathering? a) carbonation  b) oxidation  c) decomposition  d) all of the above 26) How long does it take for the earth to complete one rotation? a) 365 days  b) 30 days  c) 24 hours  d) 72 hours 27) What is the primary function of gravity in the universe? a) provision of energy  b) keep the stars and heavenly bodies in orbit  c) causes movement in space  d) part of universal design 28) What does the word “monsoon” mean? a) moon will come soon  b) atmosphere  c) season  d) climate 29) Its’ discovery enabled geologist to date rocks accurately. a) global positioning system  b) carbon-dating  c) radioactivity  d) layering 30) It occurs when the earth is between the sun and the moo, with the earth’s shadow cast over the moon. a) total eclipse  b) lunar eclipse  c) eclipse  d) partial eclipse 31) It is the boundary at which the advancing warm air mass is replacing colder air at the surface. a) warm front  b) stationary front  c) cold front  d) occluded front 32) Alin sa mga sumusunod ang hind uri ng “galaxy” ayon sa klasipikasyon na ginawa ni Edwin Hubble? a) elliptical  b) spiral  c) barred spiral  d) Sirius 33) Ang erosion ay maaring maaga pa sa pamamagitan ng pagbubungkal ayon sa contour ng lupa. Ang tawag dito ay ______________________. a) terracing  b) strip-cropping  c) contour plowing  d) hillside plowing 34) Ang pag galaw ng mga “plates” tulad ng “Eurasian Plate” at “Pacific Plate” ay pinaniniwalaan sa dahilang _________________ . a) Hindi pantay ang pagkalat ng init ng mundo nito ay “convection current”  b) init na galling sa araw  c) enerhiyang tidal  d) “gravitational pull” 35) Ang _______ ay ang tawag sa pagtalsik ng mga natunaw na material na mula sa ilalim ng lupa. a) faulting  b) volcanism  c) tectonic movement  d) continental shift 36) According to this theory, the universe was created (between 10 and 20 billion years ago) from a cosmic explosion that threw matter in all directions. a) Eternal Inflation  b) Steady State Theory  c) General Theory of Relativity  d) The Big Bang Theory 37) _______ is the science that is devoted to the study of the earth’s place in the universe, it’s structure and the processes that occur that contribute to its change. a) Physics  b) Biological Science  c) Earth Science  d) General Science 38) Which of the following is a direct result of the tilt of the Earth’s axis? a) uneven periods of day and night  b) differences of the seasons between the hemispheres  c) the occurrences of solstice  d) all of the above 39) Scientists, through experimentation, believe that the earth possesses _______. a) a liquid inner core and a solid outer core  b) a solid core and a liquid mantle  c) a liquid outer core and a solid inner core  d) has a solid crust and a liquid mantle 40) The continental drift theory can be explained as ________. a) the movement of the Earth’s tectonic plates  b) the gradual widening of the oceans  c) the movement of the large land masses on the crust d) the gradual shrinking of continents 41) When an earthquake occurs, the actual point where an earthquake originates is called the _______. a) epicenter  b) focus  c) fault line  d) fissure 42) A fountain of hot water ejected out of the ground at regular intervals is called a _______. a) mud spring  b) hot spring  c) geyser  d) vent 43) When wind, water or the activity of animals carry soil from one place to another, this process is known as _______. a) Weathering  b) Erosion  c) Sedimentation  d) Decantation 44) Which of the following is NOT an agent of weathering? a) Flowing Water  b) Transport of animals  c) Changing Air Temperature  d) Movement of wind 45) When rocks are subjected to intense heat and pressure, the properties of the original materials that make up that rock changes to form new kinds of rock. This process is known as a) Metamorphism  b) Cementation  c) Sedimentation  d) Liquefaction 46) Mike was asked to identify the rock samples by the way they split into definite pieces. He does by identifying the samples’ _______. a) Hardness  b) Streak  c) Cleavage  d) Specific gravity 47) An unknown mineral was found to be lustrous, ductile, and resistant to scratching. Most probably, the mineral is _______. a) a gem stone  b) siliceous  c) metallic  d) non-metallic 48) The energy one can harness from underground hot springs through power plants is known as _______. a) OTEC  b) Geothermal energy  c) Tidal Power  d) Wind energy 49) All of the statements below about water are TRUE except _______. a) it can rise faster in thick tubes than in thin tubes b) it exhibits surface tension  c) it expands when frozen d) it can exist in three phases 50) Sandy travels a lot and claimed to have sailed on all oceans, which of the following should he NOT include? a) Baltic  b) Artic  c) Pacific  d) Indian

Earth Science

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