For the field trip, each group needs:

• 1 pail or bucket
• 1 or 2 plastic water or soda bottles to scoop up invertebrates (cut off bottle tops)
• 1 dishwashing scrub brush with bristles
• waterproof galoshes to permit students to stand in river water to collect water

For classroom analysis, each group needs:

• 1 aluminum casserole tray
• 1 magnifying lens or microscope
• 1 pair of tweezers or another tool to move macroinvertebrates around
• Macroinvertebrate Stream Sampling Worksheet, one per person