Note: Most supplies are available online or in a local hardware store.

• Materials to build the water bottle:
• different types of plastic water bottles (these can be recycled items brought in from home)
• coffee filter paper
• Whatman filter paper, available online
• mesh (several different varieties; thin and heavy duty)
• hot glue guns and glue sticks
• scissors
• rubber bands
• air conditioning filter paper

• Types of water cleaning media:
• granular activated carbon, available online
• Zeolite, available online

• Equipment for water quality test:
• pH meter or pH strips, available online
• beaker
• water quality test strips
• dirty water (either from a local water source or handmade)
• distilled water