Download Document

TRUE OR FALSE
75 % of the earth is covered with water.
97 % of earth’s water is in the oceans.
All of the earth’s water can be used as drinking
water.
5 % of the world’s fresh water is frozen in the
polar ice caps.
Water boils at 212 degrees Fahrenheit
A person can only live without water for one day
We are drinking the same water that the dinosaurs
drank.
Are you drinking the same water a
dinosaur drank?
YES YOU ARE: BECAUSE OF THE
HYDROLOGICAL CYCLE
EVAPORATION
Evaporation is when the sun
heats up water in rivers or
lakes or the ocean and
turns it into vapour or
steam which rises in to the
air.
TRANSPIRATION
Do plants sweat? Kind of.
Transpiration is the
process by which plants
lose water from their
leaves. The water rises in
to the air.
CONDENSATION
Water vapour in the air gets
cold and changes back into
liquid, forming clouds. This
is called condensation.
PRECIPITATION
Precipitation occurs when so
much water has condensed
that the air cannot hold it
anymore. Water falls to the
earth in the form of rain,
hail, sleet or snow.
SATURATION
Movement of water in to the soil
from the surface
EVAPORATION
Water stored in rocks
TRANSPIRATION
When the soil is full of moisture
HYDROLOGY
Most water returns to the sea by
running overland.
PERCOLATION
Water vapour changes back to
water and forms as water droplets
which are visible as clouds.
GROUNDWATER
The study of water
INFILTRATION
Moisture falls to the earth (rain,
snow, hail)
PRECIPITATION
The transfer of water from plants
to the air as gas.
SURFACE RUN OFF
Movement of water into
underlying rocks.
CONDENSATION
Transfer of water from the sea to
the air
TASK:
Now fill in your own hydrological cycle. Make sure
that you include the following words.
1) EVAPORATION
2) CONDENSATION
3) TRANSPIRATION
4) PRECIPITATION
5) COLLECTION IN SEAS AND RIVERS