Acid water dissolves copper from pipes bacteria disinfectant 2 Stain clothes Fe Acid water dissolves copper from pipes none Trace amount positive copper spots scale bathtub soft hard

red orange yellow green blue indigo violet pH = 7

It corrodes/eats away the pipe It can build up & clog the pipes 7 It corrodes/eats away the pipe It clogs up pipes Calcium & magnesium It can build up & clog the pipes Through copper pipes Through iron pipes

70% 97% 2% H H 2 H= Hydrogen 1 O= Oxygen The Egyptians Boiling it over a fire Heating it in the sun Dipping a heated piece of iron into it d. Filtering boiling water through sand & gravel 70% 97% 2% Less than 1% H H 2 H= Hydrogen 1 O= Oxygen O

billions solid liquid gas 212 100 32 d g f i h c a e b

condensation Water vapor precipitation evaporation Surface runoff Ground water Belgium

Intake mixing coagulation sedimentation filtration storage Chemical addition mixing coagulation sedimentation filtration storage distribution disinfection

Keep showers to 5 min. or less f. Check for leaky faucets $1.50 The moon 83% 70% 80% Keep showers to 5 min. or less Don’t let the sink run, keep some cold water in the frig. Use a broom to clean your driveway, garage, or sidewalk; not the hose. d. Use a bucket of water to clean your bike/car & rinse quickly with a hose. e. Water your lawn in the morning or evening to avoid evaporation. f. Check for leaky faucets

Milk in cereal Syrup on pancakes Ocean water washing on the beach Permeability – how easily a liquid can move through a ground material. Porosity – how much of a rock is open space

A water source under the ground Stops the flow of water under the ground

10 parts dye to 90 parts water 10:90 ratio 5:45 ratio 10 parts dye to 90 parts water

Yes, because it was transferred from the previous cups 1/10 1/100 1/1,000 1/10,000 1/100,000 1/1,000,000 1/10,000,000 1/100,000,000 1/1,000,000,000 Yes, because it was transferred from the previous cups Evaporate the water and see if there is any residue left behind