Properties and Importance of Water

Flashcards covering the biological importance, physical properties, and chemical nature of water based on lecture notes.

Water accounts for __________ of the human body.

$$60\%-70\%$$

Water is considered the most critical __________ to life.

molecule

Water is very __________ in all known living things.

abundant

All living things __________ water to survive.

require

According to the transcript, water is __________ to life.

essential

Water is a polar __________ bound molecule.

covalent

Water molecules __________ bonds together.

hydrogen

Water forms hydrogen bonds with other __________ molecules.

polar

Polar molecules that form bonds with water are called __________ molecules.

hydrophilic

__________ are provided as an example of hydrophilic molecules in the notes.

Sugars

Water will __________ nonpolar molecules.

Repel

Nonpolar molecules are described as __________.

hydrophobic

__________ are listed as examples of hydrophobic substances that won't dissolve.

fat &oils

Temperature is defined as the __________ of molecules.

movement

Increased energy results in __________ moving molecules.

faster

Increased energy __________ hydrogen bonds.

disrupts

Hydrogen bonds in water form and __________ rapidly.

break

Without its unique properties, water should be a __________ at room temp.

gas

It takes __________ of energy to heat water.

Lots

Water possesses high __________ tension.

surface

Evaporation is so __________ at cooling because it requires significant energy.

effective

Cooling water requires lots of energy __________.

loss

Water forms a __________ structure when it is cooled to freezing.

crystalline

Ice is __________ dense than water.

less

Because it is less dense than liquid water, ice __________.

floats

Large water bodies are protected by an ice layer that __________ them.

insulates

Water keeps San Francisco __________ in the winter.

warmer

Water keeps San Francisco __________ in the summer.

colder

Water has a high heat __________, meaning it resists temperature changes.

capacity

It takes lots of energy to change the __________ of water.

temp

Water __________ temperature, affecting both coastal and desert environments.

moderates

__________ have extreme temperatures due to the lack of water.

Deserts

Coastal communities have more __________ temperatures.

moderate

Water is known as the great __________.

solvent

Water is a great solvent because it is __________.

polar

__________ compounds and polar molecules dissolve in water.

Ionic

When substances dissolve, water creates __________ of hydration.

spheres

Water also creates __________ of hydration around dissolved molecules.

shells

High surface tension is a part of waters __________.

cohesiveness

High surface tension allows things to __________.

float

__________ action is listed as a specific property of waters cohesiveness.

Capillary

Water is considered the most __________ molecule to life.

critical

Water is abundant in all __________ living things.

known

A polar __________ bound molecule is the technical description of water.

covalent

Water links to other polar molecules such as __________ via hydrogen bonds.

Sugars

Nonpolar molecules like fat &oils __________ dissolve in water.

won't

Increased energy means molecules move __________.

faster

Hydrogen bonds __________ and break rapidly in water.

form

Water requires lots of energy to __________.

heat

Effective cooling is achieved through __________.

Evaporation

Lots of energy __________ is needed to cool water to freezing.

loss

A crystalline structure is formed when water is __________.

cooled

Ice less dense than water is why ice __________.

floats

An ice __________ insulates large water bodies.

layer

Coastal communities enjoy moderate temperatures because water __________ temperature.

moderates

Water's __________ makes it an excellent solvent for ionic compounds.

polarity

Dissolved ionic compounds are surrounded by __________ or shells of hydration.

spheres

The property that allows capillary action is waters __________.

cohesiveness

Water has high __________ capacity, requiring lots of energy to change temp.

heat

__________ is the molecule that all living things require to survive.

Water