I loved this activity when I did it in my Arctic unit in December and I loved it even more today!  We did a Map Talk Nat Geo style.  I printed out the Map from their Map Maker Kits.  As they colored and labeled, I described the continents, the oceans, and the garbage patches.

They learned a LOT about the world’s oceans, saw how ugly the garbage patches make them, and they got lots of geography input!  Give it a try!  Even if you aren’t doing the whole plastic ocean unit, this little freebie is a great way to bring in something cross curricular.