ExpertIconTreesboy.bmp (69210 bytes)     Be an Expert: Trees

1. Tree Species Vocabulary     5 Points
Define these words associated with the study of trees.

cross dating
increment borer
Hardiness Zone
tree rings


2. National Trees     5 Points
Match the country to their national tree


3. State Trees     10 Points
The state tree of Illinois is the White Oak Quercus alba
Identify the state tree of 10 other states.

4. Leaf Shapes     10 Points
Identify these leaf shapes


             SciLeafShapes.bmp (239766 bytes)           1. Cross
          2. Fan
          3. Scale-like
          4. Heart
          5. Needle-like
          6. Oval
          7. Lance
          8. Round
          9. Triangular

5. Be a Landscape Architect     10 Points
Imagine you are helping a new community develop a landscape plan that will result in a healthy diverse community forest.  Look at the Community Landscape Plan Worksheet.   Notice the holes have already been dug. at sites A-J for trees to be planted.   Each of the A-J sites has different conditions and different tree needs. Using the Tree Information Sheets A & B, select what you think is the best tree to plant in each site on the Community Landscape Plan Worksheet.

Design a Community Forest
found at:
Pages you will need:

Site Requirements


5. Tree Products Crossword Puzzle      10 Points
Print out a separate Tree Products Puzzle at

SciTreesProductsCrossword.bmp (2137158 bytes)

6. Tree Anatomy     5 Points
Label this tree diagram and explain the purpose of the tree parts

SciTreeInnerDiagram.bmp (360150 bytes)   Label the parts of this tree
  Explain the purpose of each part
  • Heartwood
  • New Wood (Xylem)
  • Inner Bark (phloem)
  • Outer Bark
  • Cambium

7. Leaf Collection       15 Points



8. The Man Who Planted Trees      10 Points
'The Man Who Planted Trees' is an inspiring story about a man who restored a region of France by planting acorns until a forest was born and the land was rejuvenated.

Answer the following questions in complete sentences. Refer back to the story whenever necessary.
1. The old shepherd sorted through acorns picking out the finest 100.
Why did he take such care that they were perfect?

2. Describe the procedure that the old shepherd used to plant the oak trees.

3. Over three years the shepherd had planted 100,000 acorns.
What percentage of these actually sprouted?

4. Hunters noticed the outburst of little trees, but did not attribute to the man.
Why was he not suspected of being responsible?

5. Why did the author not recognize the town when he returned in 1945?

6. The story stated that 10,000 people now owed their happiness and comfort to Bouffier.
What did he do that caused so much so much changed in their town?

7. Why did the author feel that he had left his mark on the earth when he wrote this story?

The Man Who Planted Trees found at:


9. Adopt-A-Tree      10 Points
Choose a tree in your yard or a park.
use the Adopt-A-Tree Journal to record your information.
Identify the common and scientific name.
Estimate the height of the tree.
Measure the circumference 1 meter from the ground.
Measure the length of a leaf.
Measure the width of a leaf.
Identify any animals you see on or near your tree.
Sketch a leaf.
Sketch the tree's shape.
Sketch the seeds/fruit.
Make a leaf rubbing.
Make a bark rubbing.

Use Adopt-A-Tree Journal found at:


10. Tree Rings    5 Points
Use the Tree Cookie to answer the questions.

SciTreesRings.bmp (621054 bytes)

a. This tree was cut 3 years ago. Write that year:

b. How old was the tree?

c. What year did the tree start growing?

d. Find the ring that grew the year you were born. Was it a wet or dry year?

e. In what year of growth was there the least rainfall?

f. In what year of growth was there the most rainfall?


12. Be a Dendrochronologist      10 points
Use the cross sections of two beams.
The beams came from log cabins in the mountains of western North Carolina.
Cut out the core samples A and B.
The innermost solid line represents the first year's growth.
The students match their core samples to the master sequence depicted at the top of the activity sheet.
They glue or tape the samples from each core onto the master sequence to see how the beams overlap.
Use the master sequence to answer the questions.

SciTreesDendrochronollogy.bmp (1191174 bytes)



13. Making a Clinometer      15 Points
If you want to know how tall a chair or your desk at school is, you can take a meter stick and measure it.
But what if you want to know the height of something really tall like a tree in your schoolyard?
Can you think of a way to measure the height of tall things?

Here is a method that uses the geometry of right-angled triangle to measure the height of tall objects.

Making a Clinometer found at:


14. Reading the Rings      5 Points
To help figure out what climate the tree grew in and what the environment was like, look at each ring:

Reading the Rings (continued)
Look at these crosssections and match them to the event that caused them.

SciTreesReadingRings.bmp (1206198 bytes)


Dendrochronology background found at:

Illinois Trees found at:

Tree Treasure Chest found at: