2005 Edition "Science for 6th Graders" This is a non-commercial supplement from the nostalgic Gakken "Science for 6th Graders" No. 10. It's a kit for making an ultra-light 1g glider. This is the supplement only; the magazine itself is not included. It's unopened and unused, but it's from that era. I haven't opened it to check the contents, so please be aware of that.