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WorksheetsBio 2.1 Practice Quizizz
Total questions: 61
Worksheet time: 33mins
Water’s unique properties arise because of its ability to form strong:
covalen bonds
hydrogen bonds
dipole bonds
ionic bonds
Ice floats on water because:
liquid water is less dense than ice
water's surface tension is strong enough to support the ice
there is oxygen dissolved in liquid water
the molecules in ice are farther apart than the molecules in liquid water
A property of water that is vital to supporting life is that:
water is transparent
water can dissolve a wide variety of substances
water is found naturally on Earth as a liquid, solid, and gas
water molecules are not charged
Cohesion is:
exemplified by the action of water droplets sticking to your drinking glass
a property that allows water to dissolve certain substances
a phenomenon that occurs only at the surface of water
an attraction between molecules of the same kind
Drops of dew on a leaf owe their spherical appearance to:
cohesion
adhesion
the density of water
cohesion, adhesion, and surface tension
Capillary action of water in a tube is the result of _____ being stronger than _____.
cohesion; adhesion
adhesion; cohesion
surface tension; cohesion
cohesion; surface tension
A frozen lake in winter with fish swimming below the surface is possible because of which property of water:
cohesion
adhesion
low molecular weight
polarity
Why does ice float?
As water freezes, the molecules spread out decreasing its density.
As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.
As water freezes, air gets trapped making it more dense
As water freezes, it takes up more oxygen from the atmosphere, causing it to be more dense
Water is a universal solvent because it...
It can be found anywhere
It freezes when it gets cold
Floats when frozen
Dissolves more substances than anything else
Which of the following is LEAST likely to dissolve in water?
nonpolar fats and oils
polar sugar molecules
salt made of a positive sodium ion and a negative chloride ion
all of the substances will dissolve easily in water
Why does water move from the roots to the leaves of plants?
Water is pushed by solutes
Capillary action pulls the water molecules up like a chain
Water is pulled by gravity
Water cannot move up roots to leaves
Which term refers to water having a slightly positive and a slighty negative charge on its ends?
cohesion
surface tension
polar
adhesion
The hydrogen atoms in a water molecule are ________________ charged.
not
negatively
neutrally
positively
A paperclip floating on water is an example of what property of water?
capillary action
surface tension
universal solvent
specific heat index
Water drops being attracted to each other is an example of ____________.
capillary action
adhesion
specific heat index
cohesion
Water is a polar molecule because the
electrons are pulled more towards the oxygen.
electrons are pulled more towards the hydrogen.
molecule is neutral.
electrons are positively charged.
Covalent bonds are when atoms __________ electrons.
swap
share
combine
When water molecules stick to other water molecules?
Adhesion
Surface Tension
Capillary Action
Cohesion
When water molecules stick to anything other than other water molecules?
Adhesion
Solvent
Salinity
Cohesion
In a water molecule, hydrogen has what kind of charge?
Positive
Negative
Neutral
Super Charged
In a water molecule, oxygen has what kind of charge?
Positive
Negative
Neutral
Super Charged
What is the chemical formula for water?
CO2
NaCl
H2O
C3PO
What bonds hold water together?
Covalent
Hydrogen
Emotional
Family
What type of bond holds 2 or more water molecules together?
Covalent
Hydrogen
Emotional
Family
The attraction of water molecules to one another is because of?
Water loneliness
Polarity
Peer Pressure
Capillary action
Cohesion of water molecules produces a "skin" that allows insects to walk on water
Buoyancy
Universal Solvent
Surface Tension
Salinity
This is when Adhesion and Cohesion work together to allow water molecules to up through narrow tubes against gravity
Specific Heat
Buoyancy
Salinity
Capillary Action
As water evaporates, it takes a lot of this with it.
Dirt
Cold
Heat
Germs
This is the ability of your body to keep everything normal in the face of changing conditions
Adhesion
Cohesion
Polarity
Homeostasis
Blood functions as a transport mechanism to take nutrients and oxygen to all cells in the body. What property of water allows for this to occur?
Expansion Upon Freezing
Universal Solvent
Cohesive Behavior
Ability to Moderate Temperature
What property of water allows for water to act as a temperature regulator for the world?
Cohesive Behavior
Expansion Upon Freezing
High Specific Heat
Universal Solvent
What property of water causes these Alka-Seltzer tablets to dissolve?
Universal Solvent
Expansion Upon Freezing
Cohesive Behavior
High Specific Heat
Sweating is an example of what property of water?
Ability to Moderate Temperature
Expansion Upon Freezing
Cohesive Behavior
Universal Solvent
Water has an unusually high specific heat. What does this mean?
At its boiling point, water changes from liquid to vapor.
A large amount of heat is required to raise the temperature of water.
Ice floats in liquid water.
Salt water freezes at a lower temperature than pure water.
Floating ice can insulate bodies of water.
What characteristic is shown in the image?
Polarity
Hydrogen Bonds
Cohesion
Adhesion
covalent bonds
bonds created by sharing electrons
a weak bond between two molecules created by opposite charges
sticking together of particles of the same substance
property of molecules sticking to other materials due to polarity
hydrogen bonds
bonds created by sharing electrons
a weak bond between two molecules created by opposite charges
sticking together of particles of the same substance
property of molecules sticking to other materials due to polarity
Water is one of the most important substances for living things. One property of water that makes life on Earth possible is its high specific heat. How does the high specific heat of water affect the human body?
It moves fluids through arteries and veins.
It allows lighter materials to float in blood.
It makes it possible for substances to dissolve in cells.
It helps the body maintain a constant internal environment.
The Gulf Stream is an ocean current that flows along Florida’s east coast. It has an
important moderating effect on the climates of northern latitudes, particularly in Greenland, Canada, and Europe. What property of water makes the climate of these areas milder than they would otherwise be?
melting point
high specific heat capacity
polarity and electronegativity
expansion of crystal structure as water freezes
Water has several properties that make it essential to life as we know it. Which property of water is the most important for delivering nutrients to cells in the human body?
High specific heat
Expansion upon freezing
Ability to dissolve many substances
Cohesive behavior
All living things need to transport molecules from one place to another in order to carry out necessary life functions. Living things often transport these molecules by dissolving or dissociating them in water and then moving the resulting solutions from place to place. What characteristic must a molecule have for it to form a solution in water?
It must be at least as small as the polar water molecules.
It must be nonpolar to be able to react with the polar molecules.
It must be at least slightly polar to be able to react with the polar water molecules.
It must be covalently bonded in order to form new bonds with the polar molecules.
Temperatures around large bodies of water tend to be more moderate than temperatures inland. What properties of water accounts for this?
Water has low salinity.
Water has a higher density than solvents.
Water has the ability to absorb, store, and release large amounts of thermal energy.
Water has polar properties that cause cohesion among individual water molecules.
Match the following property to its definition:
adhesion
the attraction among molecules that are not alike
cohesion
the attraction among molecules that are alike
surface tension
tightness on water surface caused by polar molecules pulling on each other
universal solvent
a substance capable of dissolving all or a large variety of substances
Water plays many roles on Earth - choose the roles that water plays on Earth - choose all that apply.
influences weather
shapes Earth's surface
supports life
supports human activities
Water molecules are polar molecules. What is meant by the term polar molecule?
a molecule that has no charge on one end and either an overall negative or positive charge on the other end
a molecule that has an overall positive charge on one end, as well as an overall positive charge on the other end
a molecule that has an overall negative charge on one end, as well as an overall negative charge on the other end
a molecule that has an overall positive charge on one end and an overall negative charge on the other end
