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WorksheetsSCIENCE
Total questions: 60
Worksheet time: 30mins
In a solution, the substance that does the dissolving is called:
A. Soluble
B. Solute
C. Solvent
D. Ion
Water is a good solvent because:
A. Water is a good solvent because it is a negatively charged ion
B. Water is such a good solvent because it repels most molecules
C. Water is such a good solvent because it is such a small molecule
D. Water is a good solvent due to its polarity and small molecular size
A solution that cannot hold any more solute at room temperature would be:
A. Dilute
B. Concentrated
C. Saturated
D. Supersaturated
Ethanol dissolved in water would be an example of:
A. Solution between two miscible liquids
B. Solution between a solid and a liquid
C. Suspension between two liquids
D. Ethanol and water do not form a solution
To form a supersaturated solution, it requires:
A. Reducing the amount of solute
B. Reducing the amount of solvent
C. Increasing the amount of solute
D. None of the above
Which of the ff is an example of a physical change?
A. Iron rusting
B. Steak cooking
C. Sugar dissolving
D. Candle burning
Which of the ff is not a physical change?
A. Clothes drying in the dryer
B. Making a cup of coffee
C. Chopping wood
D. Boiling an egg
The chemical after a chemical change:
A. Have properties identical to the chemicals before the change
B. Have properties different to the chemicals before the change
C. Both A and B
D. None of the above
Heptane is always composed of 84% carbon and 165 hydrogen by mass. What does this observation illustrate?
A. The Law of Multiple Proportions
B. The Law of Definite Proportions
C. The Law of Conservation of Mass
D. The Law of Conservation of Energy
Give the mass number for an atom that has 10 protons, 10 electrons and 11 neutrons
A. 31
B. 20
C. 10
D. 21
How much of substance W will react with 9.0 g of substance Z? (Refer to the table).
A. 9.0
B. 12.0
C. 15.0
D. 18.0
The amount of substance WZ that will be produced from 12.0 g of substance Z assuming that substance W is in excess is: (Refer to the table)
A. 22.5 g
B. 27.0 g
C. 31.5 g
D. 36.0 g
Which conditions will increase the rate of chemical reaction?
A. Decreased temperature and decreased concentration of reactants
B. Decreased temperature and increased concentration of reactants
C. Increased temperature and decreased concentration of reactants
D. Increased temperature and increased concentration of reactants
When a lit match is touched to the wick of a candle, the candle begins to burn. When the match is removed, the candle continues to burn. In this reaction, the match:
A. Behaves as a catalyst
B. Supplies activation energy
C. Part of the rate determining step
D. Lowers the activation energy barrier
Compared to a glass of ice water with ice in it, a glass of plain ice-cold water without ice on a warm day will warm up:
A. Faster
B. Slower
C. In the same amount of time
D. None of the above
The solubility of a substance was determined in 300 cm3 water at different temperatures and the illustration above is part of the graph obtained. (Refer to illustration).
In 150 cm3 water, how much of the substance will dissolve at 75 C?
A. 18 g
B. 10 g
C. 36 g
D. 40 g
After studying the illustration above, one may conclude that: (Refer to the diagram).
A. Water molecules are attracted by the electrodes
B. Sodium chloride dissociated when placed in water
C. Chlorine ions are attracted to the negative electrode
D. Current flow causes an increase in water temperature
One may also conclude that: (Refer to diagram).
A. Only chlorine ions conduct current
B. The solution will not conduct current
C. The closed circuit illustrates results in neutrality
D. When ions are present they are attracted to electrodes having opposite electrical charges
Jaques Charles was a French hot air balloonist and scientist. He discovered Charles’ law by studying the relationship between volume and temperature of a gas constant at atmospheric pressure. As the temperature of the gas in a balloon is increased, its volume also increased.
These increases inflated and lifted the balloon.
In equation form, for the case of a constant pressure:
V/T = constant
If the volume of a gas at a certain pressure is halved, _______
A. Its temperature is halved
B. Its temperature is doubled
C. Its temperature remains constant
D. Its temperature increases according to a geometric progression
Jaques Charles was a French hot air balloonist and scientist. He discovered Charles’ law by studying the relationship between volume and temperature of a gas constant at atmospheric pressure. As the temperature of the gas in a balloon is increased, its volume also increased.
These increases inflated and lifted the balloon.
In equation form, for the case of a constant pressure:
V/T = constant
Which of the ff graphs shows the temperature-volume relationship for a gas?
(T = temperature and V= volume)
The hydrogen bonds in water are a result of:
A. the hydrogen of one molecule bonding to the hydrogen of another molecule.
B. the oxygen of one molecule bonding to one of the hydrogens of that molecule.
C. the hydrogen of a water molecule
bonding to the nitrogen of another.
D. the hydrogen of one molecule bonding to the oxygen of another molecule.
E. None of the above
Which of the following describe the
physical dimensions for DNA?
I. The nitrogen bases are 0.34 nm from
one another, moving 58 to 38.
II. The diameter of the strand is 20 nm.
III. The two strands run antiparallel.
A. I only
B. II only
C. III only
D. I and II
E. I and III
Plants produce energy in their:
I. cytosol.
II. mitochondria.
III. chloroplasts.
A. I only
B. II only
C. III only
D. II and III
E. I, II and III
Organisms are placed in different trophic levels according to how they obtain their energy. Another name for primary consumer is:
A. Green plant
B. Herbivore
C. Carnivore
D. Omnivore
E. Decomposer
Some organisms living in a vacant lot
include grass, dandelions, mice, grasshoppers, and slugs. Collectively these organisms represent:
A. An ecosystem
B. A community
C. A population
D. Mutualism
E. Biome
In minks, the gene for brown fur (B) is
dominant to the gene for silver fur (b).
Which set of genotypes represents a cross
that could produce offspring with silver fur
from parents that both have brown fur?
A. Bb x Bb
B. BB x Bb
C. BB x bb
D. Bb x bb
E. None of the above
In four-o-clocks, pink flowers are the result of a red allele and a white allele for the color gene. If you crossed a white with a
pink, what would be the most likely result?
A. 20 red and 20 pink
B. 40 pink
C. 20 pink and 20 white
D. 20 red and 20 white
E. 40 white
A man with type O positive blood married a woman with type B negative blood. What is (are) the types of blood that their children can have?
A. B positive
B. O positive
C. B negative and B positive
D. O negative and O positive
E. B negative and positive, O negative and positive
The HIV virus infects mostly:
A. Complement cells
B. Red blood cells
C. T-killer cells
D. T-helper cells
E. All of the above
Blood entering the dorsal aorta has most recently been in the ____
A. Right atria
B. Right ventricle
C. Left atria
D. Left ventricle
E. Pulmonary vein
The function of ATP in voluntary muscle
movement is to supply the energy for
A. Myosin to bind to actin
B. Myosin to become separated from actin
C. Tropomyosin to become separated from troponin
D. Tropomyosin to become separated from troponin
E. Tropomyosin to become separated from actin
Which one of the following lists contains an organism that does NOT belong in that Phylum?
A. Jellyfish, coral, anemone, starfish
B. Tunicates, birds, sharks, man
C. Bats, dogs, cats, sloths
D. Liver fluke, planaria, tapeworm, flatworms
E. Clam, squid, nautilus, snail
Which of the following could be used to
study evolution?
A. DNA hybridization
B. RFLPs
C. structural homologies
D. Fossils
E. All of the above
Which of the following is (are) a domain(s)?
I. Eukaryota
II. Archaebacteria
III. Eubacteria
A. I only
B. II only
C. III only
D. I and III
E. I, II and III
The target tissue for parathyroid hormone is (are) the:
A. Kidneys
B. Bones
C. Small intestine
D. All of the above
E. None of the above
Which of the following organelles is out of order from an endomembrane point of view?
A. Nucleus
B. Vesicles
C. Golgi apparatus
D. Endoplasmic reticulum
E. Plasma membrane
The products of the light reactions, or
photophosphorylation, in photosynthesis are:
A. Oxygen and water
B. Oxygen and ATP
C. Oxygen, ATP and NADPH
D. Water, ATP and NADPH
E. Water, ATP, NADP and H
Human populations in specific locations, locations where there is extensive tectonic activity, should take extensive precautions to minimize loss of: ___________________
A. diamonds
B. lives
C. emeralds
D. money
E. wealth
Older crust tends to be ________________, and therefore is denser than younger crust.
A. hotter
B. higher
C. faster
D. younger
E. cooler
The Mariana Trench was most likely created by the
A. divergence of the Eurasian and Philippine Plates
B. convergence of the Pacific and Philippine Plates
C. sliding of the Pacific Plate past the North American Plate
D. movement of the Pacific Plate over the Hawaii Hot Spot
E. divergence of the Pacific and Antarctic Plates
Which part of Earth’s interior is inferred to have convection currents that cause tectonic plates to move?
A. crust
B. outer core
C. asthenosphere
D. inner core
E. rigid mantle
Primary (P) Seismic Waves can pass through _________________________.
A. liquids only
B. solids only
C. gases only
D. solids, gases, and liquids
E. crust and core only
Of the 3 seismic waves, the _____-Waves are the fastest.
A. R
B. Q
C. P
D. S
E. L
Secondary (S) Seismic Waves can pass through _________________________.
A. gases only
B. solids only
C. liquids only
D. solids, gases, and liquids
E. crust and core only
P-Waves are also said to be ____________-____________ waves.
A. east-west
B. side-side
C. up-down
D. north-south
E. push-pull
To find the epicenter of an earthquake, at least _____ seismic stations are needed.
A. 2
B. 1
C. 3
D. 4
E. 5
The closest seismic station to the epicenter of an earthquake will record P-Waves ___________________.
A. third
B. second
C. first
D. fourth
E. fifth
A tsunami forms when the epicenter of an earthquake is on the _____________________ floor.
A. convergent
B. desert
C. crusty
D. volcanic
E. oceanic
Lasers are sometimes used to detect movements along faults. LASER is an acronym for:
A. Light Amplification by Simplified Emission of Radiation
B. Light Altercation by Stenographic Emission of Radiation
C. Lunar Amplification by Simplistic Emission of Radiation
D. Local Altercation by Super Emission of Radiation
E. Lunar Amplification by Simplified Emission of Radiation
The Ring of Fire is located:
A. around the Pacific Plate
B. around the Atlantic Plate
C. around the San Andreas' Fault
D. around the Convergent zone
E. around the Aztec Plate
The Hawaiian Islands are in the Ring of Fire. The Hawaiian Islands were formed by:
A. active calderas, result of a subduction zone
B. active mountains, result of the Aztec plate
C. active volcanoes, result of a hot spot
D. active mantle, result of radioactive crust
E. active subduction zone, result of a divergent boundary
The famous meteorologist who helped bring forth the theory of Continental Drift was:
A. Charles Darwin
B. Albert Einstein
C. Alfred Wegener
D. Charles Bronson
E. Alfred Hitchcock
What does Mt. Pinatubo, Mt. St. Helen's, and Redoubt Volcano of Alaska have in common?
A. All three are mountains
B. All three are on the Ring of Fire
C. All three are safe to visit
D. All three are on the Mid-Atlantic Ridge
E. All three are on top of divergent zones
Diamonds are known to be formed in the Earth's
A. outer core
B. surface
C. inner core
D. mantle
E. biosphere
Why does the oceanic crust sink beneath the continental crust at a subduction boundary?
A. The oceanic crust has a lighter density.
B. The oceanic crust is pulled downward by Earth’s magnetic field.
C. The continental crust has a more magnetic composition.
D. The oceanic crust is hotter.
E. The oceanic crust has a greater density.
The two types of crust are _________________________ and _________________________.
A. oceanic, volcanic
B. oceanic, land
C. land, pangaea
D. continental, volcanic
E. oceanic, continental
At mid-ocean ridges, new ____________________________ crust is created.
A. continental
B. oceanic
C. volcanic
D. convergent
E. transform
Seafloor spreading is a process that creates new ________________________ crust.
A. convergent
B. continental
C. volcanic
D. oceanic
E. transform
Between oceanic and continental crusts, the ___________________ crust is denser.
A. oceanic
B. continental
C. convergent
D. divergent
E. transform
In seafloor spreading, the further the ocean floor is away from the mid-ocean ridge, the _____________________ that floor will be.
A. younger
B. newer
C. rockier
D. older
E. prettier
