Walk along one block in your neighborhood and count the number of trees along the street and in front yards. Record this number.

STEP 2: DOCUMENT AND MEASURE THE DIAMETER OF FIVE TREES
Find five trees that you have access to. (You need to be able to get close enough to touch the trunks of the trees.)

For each tree, you will need to take a picture of the tree and measure its diameter. (If you are unable to take a picture, you can sketch the tree instead.) Diameter at breast height (DBH) is the standard way to measure the size of a tree. DBH is the diameter of the tree at approximately 4.5 feet above the ground.

You can measure the diameter of the trees by using a fabric tape measure (Links to an external site.) or a free measuring app (Measure app for iOs (Links to an external site.) or Measure app for Android (Links to an external site.)). Note that these measuring apps can be a bit finicky and you will need to stand quite close to the tree to obtain accurate measurements. For this assignment, you will need to know the DBH in inches.

IF YOU ARE USING A FABRIC TAPE MEASURE:
Measure 4.5 feet above the ground.
Wrap the tape measure around the tree at this point. Write down the measurement; this is the circumference.
Divide the circumference by 3.14. This will give you the diameter of the tree.
Record the diameter of the tree and repeat this process for all trees in your area.