Each group needs:

• a small object that floats (empty bottle, ball, rubber duck, orange, etc.)
• meter/yard stick
• stopwatch or timer
• waterproof tape measure (open reel fiberglass tape measures work well)
• clipboard (to hold data sheet)
• fishing waders or tall boots for any student getting in the stream (optional)
• Vernier flow rate sensor, available online (optional)
• Flow Rate Activity Worksheet

To share with the entire class:

• a local stream to where students can take measurements
• transportation to a local stream
• computer with internet access and projector