Note: If you happen to stumble across a tree stump, take the time to identify the tree and count the rings in the trunk to find out the age of the tree.

Procedure

Find an area that has a variety of trees (park or playground).
Find your first tree sample, and at approximately three to five feet from the ground, measure the circumference of its trunk.
Find about four more types and sizes of trees and record their types and circumferences.
Follow this formula to calculate the diameters of the trees: Diameter = Circumference divided by 3.14 (pi).
Multiply the diameter of each tree by its growth factor (found on Growth Factor Chart) to calculate the approximate age of the tree.

Author: Kathy Phillips

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Warning is hereby given that not all Project Ideas are appropriate for all individuals or in all circumstances. Implementation of any Science Project Idea should be undertaken only in appropriate settings and with appropriate parental or other supervision. Reading and following the safety precautions of all materials used in a project is the sole responsibility of each individual. For further information, consult your state's handbook of Science Safety.

Using A Dichotomous Key To Identify Trees

Science project

Using A Dichotomous Key To Identify Trees

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Science project

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By the end of the lesson, students will understand what theme is and how to determine theme in a piece of writing, such as a poem.

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Lesson plan

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Worksheet

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5th grade

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Worksheet

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Worksheet

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5th grade

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Worksheet

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Worksheet

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Worksheet

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Science project

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Science project

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Exercise

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Exercise

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Science project

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Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

4th grade

Science

Science project

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Science project

How Can You Tell The Age Of An Egg Without Cracking It Open?

Demonstrate how to tell the age of an egg without having to crack it open.

5th grade

Science

Science project

Determining Mold and Mechanical Deterioration Risk for an Artifact Storage Box

Science project

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5th grade

Science

Science project

Does Age Affect Memory?

Science project

Does Age Affect Memory?

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5th grade

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Science project

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Worksheet

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5th grade

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Worksheet

Science project

Determining the Ages of Trees

Problem:

Materials:

Procedure

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