Katancic's oakKatancic's oakhttps://www.globe.gov/c/message_boards/find_thread?p_l_id=18703103&threadId=1716307672026-05-21T21:37:31Z2026-05-21T21:37:31ZKatancic's oakMarija Pintarićhttps://www.globe.gov/c/message_boards/find_message?p_l_id=18703103&messageId=1716307662025-10-02T09:27:47Z2025-10-02T09:27:47ZHello from Elementary school Matija Petar Katančić, Valpovo! This<br />autumn is our first time doing green down obsevations. We are observing<br />an oak, the tree is young, it is about 9 meters tall and it's<br />curcumference is 60 cm. Leaves are still on the branches and they are<br />slowly changing color from 5GY 4/8 to 5Y 8/4.Marija Pintarić2025-10-02T09:27:47Z