Overview: Evergreen trees have needles that are considered modified leaves. These needles help the tree endure seasonal fluctuations. This activity builds off of a previous post. Now that you have identified your tree, take time to explore its needles a little more closely.
Intended Learning Outcomes: At the completion of this activity you will be able to:
- Describe major features of evergreen tree needles.
- Make your own air freshener and/or essential oils from evergreen tree needles.
Materials Needed: Evergreen tree branch (freshly cut work best), magnifying glass, other items needed as listed
Observations: Examine the needles of a fresh evergreen tree branch with the magnifying glass. Take notice of the waxy coat that covers the needles. How do these leaves differ from those of non-evergreen trees? What do you think is the purpose of the wax?
Experiments: Many evergreen trees have a wonderful scent. Try to extract the scents or essential oils from the needles by following the steps noted in the links below.
Enjoy the nice aromas! Happy Holidays!