When a lake freezes over in the winter,

the ice only forms on the top layer and acts as insulation for the rest of the lake.

the ice freezes the entire lake into one giant ice cube.

the ice freezes on the top layer, but then sinks to the bottom because ice is more dense than water.

the ice only forms on the bottom layer, and melts quickly.

Large bodies of water tend to resist large temperature changes due to water's __________________ which allow it to

high specific heat; absorb and store heat.

heat of vaporization; store cold air

heat of vaporization; keep the water from evaporating

high specific heat; reflect heat

Water is essential for life. Its special properties make water the single most important molecule in plant life. Which of the following properties of water enables it to move from the roots to the leaves of plants?

Water exhibits cohesive behavior.

Water is able to moderate temperature.

Large bodies of water, such as lakes and oceans, do not quickly fluctuate in temperature. What is the reason for this phenomenon?

Water has a high heat capacity.

Why does ice stay at the top of oceans instead of sinking to the bottom?

Ice is less dense than liquid water.

Ice is colder than liquid water.

Ice is more dense than liquid water.

Ice is warmer than liquid water.

Small insects can walk across the surface of calm water. Their feet push the surface of the water down slightly, somewhat like a person walking across a trampoline, but they do not break the surface. What is the best explanation for why this happens?

The insects are light enough so that they do not break the hydrogen bonds holding the water molecules together

The insects actually use their wings to hover slightly above the water's surface and they only skim it with their feet

The insects' feet are non-polar, so they are repelled by the polar water molecules and are pushed away from the water's surface

The insects are small enough to see the individual water molecules, so they are able to step carefully from one molecule to the next

A florist places a bouquet of white carnations in water containing blue dye. After a time, the flowers turn blue. What process helped the carnations to change color?

Cohesion and adhesion of water molecules

Formation of covalent bonds between hydrogen and oxygen molecules

Water makes up approximately 60% of the human body and plays a vital role in regulating body temperature. Which property of water makes it good at regulating temperature?

Water has a high capacity for heat.

Water exhibits strong cohesion.

. Water has an unusual crystalline structure.

Water has a much higher specific heat than most other covalent compounds. What do you predict might happen if water had a low specific heat instead?

Organisms that are sensitive to changes in temperature would die

Flooding would occur and animals would be forced to migrate

Harmful organisms living in water would reproduce at a rapid rate

Plants would not have enough water to effectively carry out photosynthesis

Many fish and aquatic plants can survive a cold winter because the layer of ice that forms at the top of the lake insulates the water below and prevents the lake from freezing solid. What unique property of water contributes to this effect?

Water expands and becomes less dense when it freezes.

Water absorbs heat when it evaporates and forms a gas

Water molecules completely separate into ions in solutions.

Water forms hydrogen bonds with ions and other polar substances.

Which of the following characteristics of water is not a result of hydrogen bonding?

All of the above are a result of hydrogen bonding.

Water Properties

10th Grade

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Water Properties

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Biology

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10th Grade

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Practice Problem

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Hard

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NGSS

MS-PS1-4, HS-ESS2-5, MS-PS3-4

Standards-aligned

Charles Martinez

FREE Resource

Capillary Action

Surface tension

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Water Properties

28 questions

In a water molecule ________________ has the positive charge.

In a water molecule _____________ has the negative charge.

Some insects and small organisms can walk on water due to

The tendency of water molecules to attract to one another is known as

The _____________ is the part of the solution that is dissolved.

The ______________ is the part of the solution that dissolves the other substance.

The ________________ is the amount of heat it takes to raise the temperature of one gram of a substance by one degree Celsius.

Water molecules are strongly attracted to one another due to _ bonds, which causes __.

When water molecules bond to the xylem in plants, it is displaying the property of

Ice floats on water because it _ when it freezes, and becomes dense than water.

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Water Properties

28 questions

In a water molecule ________________ has the positive charge.

In a water molecule _____________ has the negative charge.

Some insects and small organisms can walk on water due to

The tendency of water molecules to attract to one another is known as

The _____________ is the part of the solution that is dissolved.

The ______________ is the part of the solution that dissolves the other substance.

The ________________ is the amount of heat it takes to raise the temperature of one gram of a substance by one degree Celsius.

Water molecules are strongly attracted to one another due to _______________ bonds, which causes ________________.

When water molecules bond to the xylem in plants, it is displaying the property of

Ice floats on water because it ___________ when it freezes, and becomes __________ dense than water.

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Water molecules are strongly attracted to one another due to _ bonds, which causes __.

Ice floats on water because it _ when it freezes, and becomes dense than water.