Build your own hydrophone - an underwater microphone that can detect sound waves underwater. Listen to the calls of marine animals and boat traffic. It can be used at your local fishing hole, a river, a lake, or even in the ocean.
Become a SciStarter Ambassador!
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Applications for Cohort 3 are still open!

Libraries and community organizations need your help to spark excitement for citizen science and keep the momentum going!

The SciStarter Ambassador Program offers FREE training to volunteers ready to make an impact in their communities.

Ready to make a difference? Complete your application by January 25th to join the movement!