Tree Growth Around a Birdhouse Hook
This tree has grown around the hook on the birdhouse chain. The branch it was originally hung on broke off in a storm, but the hook remained inside the trunk of the tree.
Possible Guiding, Compelling and/or Anchoring Questions
- How did the hook on the birdhouse chain get inside the trunk?
- If the branch it was hanging on broke off in a storm, why didn’t the birdhouse fall down, too?
- Lead students to understand that trees grow despite anything that might be obstructing them. The trunk of a tree gets larger and larger as it grows with each passing year, and this tree was changed by a birdhouse that was hung on a branch and a storm that broke the branch on which it was originally hung.
Iowa Core Alignment3-LS3-2:
Use evidence to support the explanation that traits can be influenced by the environment
Submitted by Miika Busick