Activity 3 - First Leaves https://www.globe.gov/c/message_boards/find_thread?p_l_id=18703103&threadId=53316703 2026-04-08T16:51:17Z 2026-04-08T16:51:17Z Lenka Kleger https://www.globe.gov/c/message_boards/find_message?p_l_id=18703103&messageId=53316702 2019-03-25T14:39:29Z 2019-03-25T14:17:41Z

Dear Teachers,<br /> <br />Thank you for your contributions to the Discussion Forum and for e-mails with pictures and results. It is wonderful to see how fast your trees are waking up and turning green.<br /> <br />In <strong>TASK 3 &#8211; First Leaves</strong> we will measure and record the length of new leaves. To record the change, it is important to visit your tree at least twice a week.<br />  <br /><strong>The activity should be completed by </strong><strong>May 15th. <br />To earn a Collaboration badge, share the picture of your tree with leaves. </strong><strong></strong><br /><br /><br /><br /><u><span style="font-size: 18px;"><strong>Activity 3 &#8211; First Leaves</strong></span></u><br /><br /><strong>1) Keep observing the branch you selected</strong><ul><li>Once you see a bud opening (= you can see the tip of green leaf), record “budburst” to your <a href="https://www.globe.gov/documents/18702582/37568634/Task+2+-+Tree+and+Shrub+Green-Up+Data+Sheet.pdf/5ff7a49d-3134-4441-b618-6e46ebfde5ac">data sheet</a></li><li>All 4 buds may not open at the same time</li></ul><br /><strong>2) Measure the length of a leaf that grows from the bud</strong><ul><li>measure and record the length at least twice a week</li><li>use a simple ruler to measure the length in mm</li><li>measure the leaf without the stem</li></ul><strong><img src="https://www.globe.gov/documents/18702582/37568634/leaf+measuring.png/6026d001-6449-47e6-9e66-b88252c2b82a?t=1521557134449" /><br /><ul><li>continue measuring the leaf until it stops growing</li></ul> <img src="https://www.globe.gov/documents/18702582/37568634/Trees+and+Shrubs+Green-Up+protocol+preview.png/644ecdea-b342-49a2-9047-990e6edc7058?t=1520546376212" /><br /><br /><strong>3) Take pictures regularly</strong><ul><li>Share the photos here at Discussion forum<a href="https://www.globe.gov/web/european-phenology-campaign/overview/discussion-forums">.</a></li><li>If you participate in the Collaboration group, don´t forget to compare your results with your partner school.</li></ul> <br /><strong>4) Optional: Record temperature and precipitation</strong><br />If you have an Atmosphere site nearby, keep recording temperature and precipitation data along with observing the leaves and see if there is any link. <br /><br /><p style="text-align: center"><em>And do not forget to continue taking pictures of your tree using </em><em><a href="https://www.growapp.today/main.html">GrowApp <img alt="emoticon" src="https://www.globe.gov/o/gov-globe-main-theme/images/emoticons/happy.gif" ></a></em></p>

Lenka Kleger 2019-03-25T14:17:41Z