relative dating

In my 6th grade science classes we introduced the topic of relative dating. Before we read the selection on the topic, I asked if this topic meant that we were going to talk about boyfriends and girlfriends. Ha ha. Well one of my students in my second group said that relative dating meant dating your cousin. More ha ha ha. Another chimed in with "relative dating is when your family tree doesn't fork." I laughed so hard! I love it when my students get the joke and can make me laugh too. Great day. This is almost as good as all the Uranus jokes in 8th grade astronomy unit!