1 What are the students doing by the lake?
The students are looking for rare and interesting birds by the lake and taking photos of them to share in an online scientific community.
2 What is citizen science?
Citizen science is scientific work done by the public to help scientists, where citizen scientists collect and share information about the natural world.
3 What can people do on the eBird app?
On the eBird app, people can record their bird sightings and share them with other users.
4 What do scientists use the information from water tests to do?
Scientists use the information from water tests to make sure that local water is safe and clean.
5 What does the writer want readers to do?
The writer wants readers to become citizen scientists and take part in scientific work to better understand our world.