My astronomy class, I got a head start (a maand ahead of the class) and I did intense research on Galileo Galilei, since I was doing my project on. I got done within a week and turned it in.
Writing things down repeatedly and underlining important words to help memorize the definitions of words. In science our teacher gives us packets with a bunch of stuff we have to do on them like vragen and filling out diagrams and I just use that as my studying.