Photo: Students study soil on a wooden desk.

Photograph by Kelly Thayer, MyShot

Did you know snapping mountain-top photos of smog and listening for frog calls can help scientists? Get ideas for how you can participate in citizen science—projects in which volunteers and scientists work together to answer real-world questions and gather data. Check out two of National Geographic's preeminent citizen science projects: the Great Nature Project and FieldScope.

More Ideas Like This

Photograph Living Things

Take photos of living things. Upload the photographs to the citizen science site iNaturalist. If you know what the living thing is, you can suggest a species identification. Or you can ask for help in identifying it. People in the iNaturalist community will suggest identifications.

Photo of a butterfly on a flower.

Butterfly Census

Contribute to a census of the butterflies of North America—in the United States, Canada, and parts of Mexico. Participate in a one-day butterfly count in your area for the North American Butterfly Association.

Photo of a skyline during a blackout.

Measure Night-Sky Brightness

Join the Globe at Night program in documenting light pollution by submitting data based on the visibility of constellations.