There are quite a few sites where students can do authentic historical or science research – and learn at the same time.

You can find many of them at THE BEST SITES WHERE STUDENTS CAN PARTICIPATE IN CITIZEN SCIENCE PROJECTS and The Best Sites Where Students Can Transcribe Historical Texts.

I just learned about another one.  It’s called Star Sailors.

There, students can help scientists identify comets, asteroids and planets, among many other options.