Slide show:Modified from Kim Foglia

http://www.explorebiology.com

Water is a ____________________ molecule

•___________ pattern of electric charge

•______ & ________ poles

POLAR COVALENT

UNEVEN

+ -

Water molecules form _____________bonds with each other

•+ from one molecule attracted to – of neighbor

•Makes molecules “__________”

HYDROGEN

STICKY

HYDROGEN BONDING PRODUCES _____________PROPERTIES OF WATER

•___________

•______________

•___________________________

•________________________________

•___________________

EMERGENT

COHESION

ADHESION

“UNIVERSAL” SOLVENT

HIGH HEAT OF VAPORIZATION

ICE FLOATS

COHESION

•___________ bonding __________water molecules makes them stick together

• _______________ Water has a “skin” Tends to “bead up”

•Drinking straw

HYDROGEN BETWEEN

Surface tension

http://online-english-lessons.eu/wordpress/2011/06/idiom-water-off-a-ducks-back/

ADHESION

•HYDROGEN bonding between water and ________molecules makes them stick to substances

• _____________________ Water climbs up paper towel

•______________________

OTHER

CAPILLARY ACTION

MENISCUS

http://morrisonlabs.com/meniscus.htmhttp://papertowelworld.com/images/bounty.gif

PLAY MOVIE HERE

HYDROPHILIC _______________

•__________ molecules are attracted to water

•____________

•_____________________

WATER “loving”

POLAR

ionic

“Like dissolves like”

HYDROPHOBIC _______________

•____________ molecules move away from water

•____________

•_____________________________

WATER “fearing”

NON POLAR

Non-ionic

“Oil and water don’t mix”

HIGH SPECIFIC HEAT

Resists ___________ in temperature• takes a lot to heat it up• takes a lot to cool it down

_______________ temperatures on Earth

CHANGES

MODERATES

http://en.wikipedia.org/wiki/File:Globe.png

WATER HAS HIGH HEAT OF VAPORIZATION

_______ required to change from liquid to gas

ENERGY

http://www.school-for-champions.com/science/evaporation.htm

ICE FLOATS ! Most (ALL?)substances are _______dense as solids than liquids.. . . NOT WATER!

__________ bonds forma crystal with loose structureso SOLID ICEis ______________than LIQUID WATER.

MORE

HYDROGEN

LESS DENSE

http://amitjathar007.blogspot.com/2011/06/why-does-ice-float.html

http://www.destination360.com/north-america/us/michigan/michigan-ice-fishing

WATER FORMS IONS

If concentration of two ions is ______, water is ____________

If [H+] > [OH-], water is ________If [H+] < [OH-], water is ________.

EQUAL NEUTRAL

ACIDICBASIC

Log scale like Richter for measuring earthquakes

Solution A is _____ times _________ acidicthan solution B

more1000

ApH = 2

BpH = 5

Log scale like Richter for measuring earthquakes

Solution B is _____ times _________ acidicthan solution A

more100

ApH = 9

BpH = 7

pH scale measures amount ofacidity or [H+]

1 X10 =[H+] pH =___ 1 X10 =[H+] pH =___

[H+] [OH-] = 10

If [H+] = 10 , then [OH-] = 10

7

4

-7

-4

-14

-8-6