Most science courses review the metric system. No matter how many times we teach it, american students pretty much only use metrics in science class, running track events and swimming in meets.
This worksheet is geared towards a practice worksheet or review. Personally, I go through my notes on it, tell them how my good friend King Henry died, do plenty of example problems, have them work a few out on their own and go over them as a class and then I let them loose on this bad boy.
May I also suggest the following resources:
Metric Lab Stations