46 Water for Life
List of difficult words
Accessible — easy to get to.
Algae — very small plants that grow in water and in wet places.
Bacteria — very small organisms that cannot be seen with human eyes. Some bacteria are
good and some are harmful for people’s health. These are often called germs.
Catchment — an area of land that catches water from rain and small streams and rivers, and
sends water downhill into a big river. A catchment is also called a watershed.
Chlorine — a chemical used to kill germs and disinfect water.
Cholera — a disease caused by a bacteria that lives in water.
Cistern — a large tank for collecting and storing water.
Conservation — saving the earth’s resources from being wasted or destroyed.
Evaporation — when water dries up into the air.
Free chlorine — leftover chlorine that prevents new germs from growing in water that has
been disinfected.
Giardia — a parasite that causes yellow, bad-smelling diarrhea, cramps in the gut, and
burps that taste like sulfur.
Groundwater — water that flows underground. Groundwater is the source of drinking water
in wells and springs. Groundwater may also be called a water table or an aquifer.
The groundwater level changes depending on rainfall and how water and land are used.
Guinea worm — a long, thin worm that looks like a white thread. It lives under the skin and
makes a painful sore on the ankle, leg, or elsewhere on the body.
Parasite — a tiny animal that lives on — or inside of — our bodies and makes us sick.
Rehydration drink — a drink made of sugar, salt and water or from grain and water that
helps retain liquid and restore health when a person is dehydrated.
Safe water — water that is not contaminated with worms, germs or toxic chemicals. It is
good for drinking, bathing, and washing clothes.
Schistosomiasis — a disease caused by worms that live in water snails. Also called blood
flukes and bilharzia.
Seepage — when water soaks into the ground.
Spring box — a container built at the place where spring water comes above ground, to
capture water for drinking.
Surface water — when rain falls to the ground it becomes surface water, where it travels in
rivers or streams, or remains in ponds or lakes.
Typhoid — an infection of the gut that is spread from feces to mouth in contaminated food
and water.
Water security — regular access to enough, safe water.
Watershed — an area where all the water drains into the same river.
Water table — the top level of the groundwater.
Water treatment — the different ways to make water safe for drinking.
Windlass — the part of a protected well used to make raising the bucket easier.