1. Stem Growth How long do plants grow?

2. Primary Growth Growth in length Roots always know to grow down  Specialized cells in root cap What about a topsy turvy planter?

3. Primary Growth

4. Stem Primary Growth At the tips of nodes of a stem, there is a primary meristem. Node: the area that holds the buds of two or more leaves, flowers, cones, roots, or other stems.

5. Stem Secondary Growth

6. Secondary meristem is located in and around the vascular tissues. Forms secondary vascular tissues and bark.

7. Tree Rings What causes the color differences in tree rings?

8. Tree Rings

9. The lighter color in a tree ring is known as earlywood. It is produced early in the season. What can the width of the rings tell you?

12. Primary and Secondary Growth

13. Tree Cookie Lab