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There are three ways to determine the age of a tree
1. For this first part you will need to cut the tree down and see how many rings are in/on the tree.
2.The second way is to count the amount of the whorls on a tree.
3. The last way is to obviously find out when the tree was planted.

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this is one that i drew: it resembles the second way.
https://sketch.io/sketchpad/





1.Determining the birthday of the tree. You have to calculate when the tree was born. This is a simple way and so you can determine the age by counting up. This works on people too. (obviously)
2. I'm not exactly sure how to do this next one, but I DEFINITELY know it includes math. Hard math. It is to multiply the diameter by the growth factor. The growth factor is the measurement of the width it gains every year. As you can tell, it it easier to do the first one.
Research Question 23
Research Question 23
Determining the age of a tree can be mathematical, research two different ways that a scientist might use math to determine the age of a tree.
Use a diagram or illustration to help explain each of your answers.
On your “sticky note” write your two explanations of how a scientist might use math to determine the age of a tree and your illustrations.

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WOW

1. On the widest part of the tree measure in inches and that's about the amount of years the tree has lived.
2. The growth rings: new wood grows under bark creating rings showing an almost accurate amount of years.

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One way to figure out how old a tree is is by counting how many rings it has. We can do that by cutting the tree down or using an increment borer.
The second way is to multiply the trees diameter and the growth factor to estimate the tree's age.

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There are 2 ways to find the age of a tree
1.The fist way is to cut the tree down and count how many rings are there
2.The second way is to count the whorls, which are like the holes on a tree, that are above your chest height.

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To determine the age of a tree there are multiple ways but I found two ways:
The first way is to count the rings the tree has, how many rings is how old it is.
The second way is to find the diameter of the tree and the diameter is the age of the tree.

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The first way I found was to count the number of rings the tree has.

The second way is to see how many "whirls" the tree has.

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The first way I'd to count the rings of the tree.
This is one way to determine the age.
The second way is to count the whorls on the tree.

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1. Counting the rings.   2.Counting tree "whorls"

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The first and most common to tell the age of a tree is to count the rings. Each year a tree grows a new ring. This helps us to know how old they are. For example, a tree with 123 rings is 123 years old.
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The second way is to extract an increment core from the tree using an increment borer. Count the little sections it has and that is the age of the tree.

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The first way I researched is to count the rings on the inside of the tree, as these signify its age. The second way to tell is to count the whorls on the tree

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I researched 2 ways to see how old a tree is.
1. Count the rings on the inside of the tree.
2. count the number of whirls that the tree has.

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The first way I found out how to determine the age of the tree was by counting the rings to find out.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++The second way is to extract an increment core by using an increment borer. An increment borer is a tool to take out a section of a tree.

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The first way I discovered was to count the rings of the tree.

The second way I found out is to measure the diameter in inches from 4.5 feet up.
Then you multiply the number of inches by the growth factor.

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One way I found was to count the rings inside the trunk. The other way I found was to measure around a tree from 4.5 to 5 feet up and the number of inches was the age.

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The first way is to count the "rings" on a tree.

The second way is to wrap a tape measure around a tree. How many inches is how many years old.

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The first way I found is to wrap a measuring tape around the tree,  and however many inches it is, is the age of the tree.

The second way is to multiply the trees diameter by its growth factor.

DON’T HURT NATURE, SAVE IT!

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The first way of finding a trees age, is counting the whorls. A whorl is like a bump on a tree, except it is shaped like a circle. You'll find a picture of one at the bottom of my sticky note. The second way, is multiplying the trees diameter by its growth factor.

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Obviously you can tell the age if you know when it was planted. The second most accurate way to tell what a tree's age is to count the annual rings of wood growth. The second way of the second method is to use a increment borer to extract the increment core. This method is rarely used because it hurts the tree and most people don't have one.

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I have researched two ways you can determine how old a tree is.

1: You could multiply the diameter by the growth factor to find out the age of the tree.

2: Another way you could tell how old a tree is to cut down the tree and count how many rings their are.
http://www.wikihow.com/images/2/28/CIRCUMFERENCE-1.png
https://www.barkbeetles.org/spb/spbbook/600/FIG8-2.gif

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I have researched 2 ways to find a trees age.

1- You could possibly research when the tree was planted. Ask older residents in you Neighborhood if they have pictures to try to find the date of the tree.
2- Another way to find the age of a tree is to count the whorls. This might not be accurate but can still be helpful.

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Scientists have several ways to tell how old a tree is.

One way is that they count the whorls around it. A whorl is the circular growth of branches in the same spot around the tree trunk. As the tree gets older, it will loose its whorls and markings will be left behind. They count from the bottom whorl up to tell how old it is.
Another way is to use an increment borer. This will take a small sample from the tree bark to the pith (tree center). It's a way to count the tree's rings without cutting down the tree. The length of the borer should be at least 75% of the tree's diameter.

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A scientist can figure out a tree's age by...
Counting the rings on a tree
or
You could measure a tree by inches and wrap an inch measuring tape around it. The number of inches determines how old a tree is. The scientist can use this method or the method above. I personally like this method the best

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The first way I found was to count the number of rings the tree has.

The second way is to wrap a measuring tape around the tree and however many inches its is how old it is.

This is an example of tree rings.

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First way

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Second way

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One way is to try to find out when it was planted.
Another way is to count the tree's whorls.

Source:
https://www.wikihow.com/Determine-the-Age-of-a-Tree

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First way is to saw the tree and count the "rings"
Seconded way is to wrap a measuring tape around the tree and the inches on it shows how old it is
( I was having problems with putting the pictures up)

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~~~~~~~~~~~~~~`Three Terrific Techniques~~~~~~~~~~~~~~

Below I have written two ways how a scientist might use math to determine the age of a tree.

1. Count the rings! The first way I found to determine the age of a tree is to just simply count how many rings there are inside of the tree. At the bottom of my "sticky note" I put an 8 second video of an example of this technique.

2. Multiply the diameter by the growth factor.
A tree's growth factor is the measurement of the width it gains annually. If you know the average annual width of tree ring for that species, you can multiply it by the diameter of the trunk to estimate the tree's age. Different species' growth factors are dependent on their environment - for example, forest trees grow faster than city trees - so this method for determining a tree's age is truly an estimate.

* Measure the circumference of the trunk in inches. Use the trunk width at 4.5 feet        (1.4 m) off the ground.
* Calculate the diameter
* Multiple the diameter and the tree species' average growth factor. This will give you the approximate age of the tree in years. You can figure out a tree's growth factor by searching online or measuring the rings of a dead tree from the same species.

3. Count the tree's whorls.
Some species of trees, such as particular conifers, produce annual branch whorls. Counting branch whorls can be used to estimate the tree's age. This method is not as accurate as cutting down the tree and counting the rings, but it's a way to estimate the tree's age without having to kill it.

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HERE IS MY PICTURE:

this is one that i drew: it resembles the second way.
https://sketch.io/sketchpad/

1.Determining the birthday of the tree. You have to calculate when the tree was born. This is a simple way and so you can determine the age by counting up. This works on people too. (obviously)
2. I'm not exactly sure how to do this next one, but I DEFINITELY know it includes math. Hard math. It is to multiply the diameter by the growth factor. The growth factor is the measurement of the width it gains every year. As you can tell, it it easier to do the first one.

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Determining the age of a tree can be mathematical, research two different ways that a scientist might use math to determine the age of a tree.
Use a diagram or illustration to help explain each of your answers.
On your “sticky note” write your two explanations of how a scientist might use math to determine the age of a tree and your illustrations.