The document discusses issues with access to clean drinking water globally and the process used to filter water in the US. Over 1 billion people worldwide do not have access to safe drinking water, and 2.2 million people die each year from diseases caused by lack of clean water access. The US filters its water using a 5 step process: coagulation, sedimentation, filtration, disinfection, and storage. An experiment was also described to find the fastest way to boil water using different materials and containers.

1. WATER INVESTIGATION.
Emma,
Lesly ,
Jareth,
Edwin,

2. WHAT IS WRONG WITH THE
WATER IN THE WORLD?
• One billion people in the world
do not have access to safe
drinking water that's roughly one
sixth of the worlds population.
2.2 million people, most of them
children, die every year from
diseases associated with lack of
access to safe drinking water.
•

3. WHAT DOES THE US DO TO ITS WATER
DIFFERENTLY THAN OTHER COUNTRIES?
We filter it!
These are the five steps to
filtering our water.
• First is coagulation: coagulation removes dirt and other particles in the water.
• Sedimentation is second: the heavy particles settle to the bottom and the
clean water moves to filtration.
• Filtration : the water passes through filters that help remove even smaller
particles.
• Disinfection: a small amount of chlorine is added to kill any other bacteria
that may be in the water.
• Storage is the last step: water is placed in a closed tank or reservoir where
the water then flows to homes and businesses in the community.

4. • Wedid an expirement with water trying to see
how we could boil it faster. We used different
materials to find out which one worked best.
• On the next slide you will see how fast it boiled
with different water or a lid or no lid.

6. WHAT MATERIALS WE WOULD USE TO
BOIL WATER FASTER:
• We would boil tap water in a glass container with a lid.
• Wewould boil tap water because it boils at a higher
temperature and that kills more germs in the water.
• We would boil tap water in a metal container because glass is
an insulator an the insulator will keep the heat in.
• We would boil with a lid because the lid would make sure that
the heat does not go out the top.

7. CONCLUSION
• We learned that a lot of people in the world need
access to safe drinking water. There are lots of
different types of water,polluted water,tap water ,
salt water and distilled water, only distilled water
will boil at 100 degrees because there are no
minerals in it and minerals will not allow the water
to boil. The united states filters its water unlike
other countries.the five steps to filtration are:
• Coagulation
• Sedimentation
• Filtration
• Disenfectation
• And storage.