water phase changes
TRANSCRIPT
HYDROSPHEREHYDROSPHERE
All of the Earth’s water found in the oceans, glaciers, streams, lakes, soil, groundwater, living organisms, and air.
Water in motion
Water in motion
Water in motion
Can you spot the water molecules?
liquid water
watervapor ice
The Water Molecule
a water molecule is composed of two hydrogen
atoms covalently bonded to a single oxygen atom
O
H H
HH O + +
The Water Molecule
O
H H
-
+ +
++
_++
_
++
_
++
_
++
_
hydrogen bond
water molecule
++
_+
+_
Hydrogen bonds
Solid = Ice
Liquid = water
Gas = water vapor
Water Phase Changes
(state of matter) (state of matter)
WATER
(state of matter)
WATER VAPOR
(process) (process)
(process)(process)ICE
melting
condensationfreezing
vaporization
Energy taken from the environment
Energy given to the environment
Energy-Temperature Graph
100
0
Energy Input
Energy-Temperature Graph
100
0
Energy Input
Energy-Temperature Graph
100
0
Energy Input
Energy-Temperature Graph
solid
solid - liquid
gas
liquid
liquid - gas100
0
Energy Input
ice
water vapor
water
100
SOLID
LIQUID
GAS
melting
vaporization
freezing
condensation
addedremoved
Tem
pera
ture
(°C
)
0
Energy
