Each group should have:

• 1 copy of each of the three Macroinvertebrate Identification Sheets (or you may print one or two copies for groups to share)
• 1 copy of the Stream Consciousness Worksheet
• 1-liter bottle (of water sample)
• Trays or petri dishes or bowls in which student may observe samples
• 1-2 magnifying glasses or dissecting microscope (if already available)
• Thermometer
• Optional: pH paper or meter (neutral water: pH = 7)