2. WATER, Our Precious 1% Understanding 1 Understanding 2 Understanding 3 K.W.L

3. Water is a vital resource essential to the well being of the earth and all the things that live on it. Water is a vital resource to earth because 70% of our earth is water 97% is salt water and 3 % is freshwater. Out of the 3% freshwater 2% is frozen so we only have 1% to use by all living things. The water cycle

4. People have an impact on an ongoing supply of good quality water  In Melbourne we have an uninhabited water catchments, that water is cleaned with chlorine and fluoride to keep our teeth strong. catchments  They pipe our water from the reservoirs to storage tanks and to our homes. They pipe our water from the reservoirs to storage tanks and to our homes. They pipe our water from the reservoirs to storage tanks and to our homes.  Water use in Melbourne is safe, clean and convenient. Water use in Melbourne is safe, clean and convenient Water use in Melbourne is safe, clean and convenient  In some countries, they do not have access to water in their homes, only in wells and rivers.  In some countries the water is not safe for drinking. It can carry diseases that will make you sick. Catchments Pure water

5. Our Catchments Our Catchments Melbourne’s Water Catchment A good quality water is crucial to a good supply of water to our community. Melbourne is only one of a few cities that has a natural uninhabited catchment. Melbourne’s Water catchment is in the Yarra Ranges which is north of Melbourne. It is in a natural eucalyptus forest that is 130 000 hectares big. Our catchment is a large protected catchment that is uninhabited. This means there is not farming, industry, logging, people, housing or pollution Rivers and streams in our catchment are dammed to create reservoirs. There reservoirs have pure clean water because the water comes from runoff through forests and from unpolluted groundwater. We have been using our catchment for over 100 years. There are rules from the government that protects our catchments from pollution. 90% of our water comes from our catchment. Melbourne water pipes water from our catchment reservoirs to service reservoirs. Here they clean the water. They add chlorine to kill the germs and add fluoride to help us have healthy teeth. The water then comes to our homes.

6. How water comes to our home

7. The Water Cycle When the cloud meets cold air, rain, hail, snow or sleet falls down from the sky. This is called precipitation. Then the water soaks in the soil which is called infiltration and some water runs all the way to the sea which is called run off. The water soaks in the soil, goes in the roots, into the stem and out through the leaves is called transpiration. The water evaporate as the ground turns warmer and steam rise in the air. The water that is been evaporated turns to clouds which is called condensation. The cycle starts again.

8. There are natural and human conditions that impact on water

9. K.W.L K.W.L  1 drop of water contains 1,000,000,000 molecules  All living things need water to live  Pure water is fresh and plain water  Water can be solid, liquid or gas Water can be solid, liquid or gas Water can be solid, liquid or gas  Water has no taste, smell, colour or flavour  Water has a surface like reflection  People have water in them selves  Water is very useful  Water is in all kinds of food.  H2o is in water.  Is water always cold?  Can water change it’s temperature by itself? Can water change it’s temperature by itself? Can water change it’s temperature by itself?  Is pool water different to plain water?  Why is there floods?  Why do we have to drink 8 glasses of water a day?  Why do we have to drink water when doing brain gym?  Why do people waste water?  Is different flavours of water?  What is ice caps?  Why is there droughts ?  Is hydroelectric waterproof?  Does other planets have water?  How does sea water get salty?  Why doesn’t it snow in St. Albans?  Which place has the most water?

10. How pure is water? How pure is water? In some cities around the world, up to 80 chemicals have to be added to water to get rid of any harmful bacteria. Melbourne’s people are very lucky because they have fresh water. Ninety per cent of Melbourne’s drinking water is collected from rainwater falling in eucalyptus covered hills in unpolluted, fenced off catchments up in the hills to the north and east of the city. This reduces the need for treatment and disinfections.

11. Planet water Planet water Planet water is a very watery place. 70% of the Earth‘s surface is covered with water. Earth should really be called planet water. Because there is so much water, we sometimes assume that we will never run out. In reality, we have a limited amount of usable freshwater. Over 97% of Earth’s water is found in oceans as seawater. 2% of Earth’s water is stored freshwater in glaciers and ice caps. That leaves only 1% of Earth’s water available to supply our daily water needs. Our freshwater supplies are stored either underground or in lakes, reservoirs, rivers, streams or on the Earth’s surface.

12. The 3 states of water The 3 states of water liquidsolid The 3 states of water is solid (ice), liquid (water) and gas (steam). Solid turns into liquid by melting. Liquid turns into solid by freezing the solid. Liquid turns into gas by boiling, adding heat or evaporating and gas turns into liquid by condensating. gasliquid

13. 1. What are the 3 states of water? a.solid, liquid and gas.solid, liquid and gas. b.Solid, gas and water.Solid, gas and water. c.Liquid, gas and gas.Liquid, gas and gas. 2. Planet water is a what place? a.Clean placeClean place b.Watery placeWatery place c.Dirty placeDirty place 3. how many chemicals have to be added in water? a.1818 b.800800 c.8080 4. What causes a drought? a.El NinoEl Nino b.ConvictsConvicts c.The governmentThe government 5. Another word for rain, hail, snow or sleet is……. a.TranspirationTranspiration b.PrecipitationPrecipitation c.percipitationpercipitation 6. What is in water? a.H2goH2go b.H20H20 c.H2oH2o 7. Condensation is what? a.Evaporated water forms into cloudsEvaporated water forms into clouds b.Clouds turns into waterClouds turns into water c.Clouds and water turns into bubblesClouds and water turns into bubbles 8. Where does water come from? a.skysky b.catchmentcatchment c.PeoplePeople 9. What is it like in our catchment? a.habited, industryhabited, industry b.LoggingLogging c.Peaceful, eucalyptus forest.Peaceful, eucalyptus forest. 10. Which one is our precious percent? a.90%90% b.1%1% c.75%75%

14. You must a expert about water. You must know lot about water. back

15. Sorry, better luck next time…  back

16. Water in the Kitchen Wasting Water A running tap can use 9 litres per minute. If you washed the dishes and it took 3 minutes, that would waste If you have a full sink of water to wash the dishes, you use 10 litres of water and you can wash all your dishes.

17. Saving water in the shower Old showers use 20 litres per minute. A triple AAA rating shower head only uses 9. Old showers use 20 litres per minute. A triple AAA rating shower head only uses 9. Triple AAA litres Old Style litres I minute 920 2 minutes 1840 3 minutes 2760 4 minutes 3680 5 minutes 45100 6 minutes 54120 7 minutes 63140 8 minutes 72160 9 minutes 81180 10 minutes 90200 Look this is over double! This is an old shower head

18. Saving water Brushing your teeth If you turn the tap off when you brush your teeth you only use 1 litre of water to rinse you mouth. If you turn the tap off when you brush your teeth you only use 1 litre of water to rinse you mouth. If you leave the tap running, you use 12 litres of water per day. That’s over 4000 litres per year for 1 person. If you leave the tap running, you use 12 litres of water per day. That’s over 4000 litres per year for 1 person. The tap is off Look at the tap running all the time when Huy is brushing his teeth. He even walks away and lets it run

19. THE TOILET! A leaking toilet can waste up to 16000 litres per year. Dual flush toilets only use 3 or 6 litres per flush. Your family can save up to 35000 by using dual flushes on toilets A leaking toilet can waste up to 16000 litres per year. Dual flush toilets only use 3 or 6 litres per flush. Your family can save up to 35000 by using dual flushes on toilets If you have an old toilet it uses 11 litres. If you have an old toilet it uses 11 litres. 3 litres 6 litres 11 litre flush 10 times 3060110 100 times 3006001100 10003000600011000 10,000 30 000 60 000 110 000 3000900018000 33 000 You go to the toilet 3000 times every year?!?!? Look at the water wasted on an old toilet

20. Washing the Car Now we are in stage 2 restrictions, you cannot wash your car with a hose. You must use a bucket or go to the car wash which may recycle water. Now we are in stage 2 restrictions, you cannot wash your car with a hose. You must use a bucket or go to the car wash which may recycle water.