The world around us
34
Groundwater is the water under the ground which has been
absorbed
from
rainfall
. It can be in the form of
underground lakes, or rivers. When it rains, water
filters
through the soil and goes underground. This water
is very important for human and animal life. People in
deserts
extract water from the ground with wells.
Water collects in underground basins, and forms lakes. These are called
aquifers
.
A
well
is a hole that extracts water from aquifers.
Water from rainfall filters through the
soil
. When water comes to the surface it comes out as a
spring
.
Springs turn into rivers.
Water that hasn’t reached the surface finally joins the sea.
What’s a well?
1
Talk to a partner.
a)
Is all the water on the surface?
b)
What’s filtration?
R E A D & T H I N K
Water from rainfall filters through the
soil
.
A
well
is a hole that
extracts
water from aquifers.
Water collects in underground basins,
and forms lakes. These are called
aquifers
.
If the water doesn’t escape
before, it joins the sea.
When water comes to the surface it comes
out as a
spring
. Springs turn into rivers.
Groundwater
