Shadow Pattern Lab Report

Introduction:
The Egyptian learned that joining forces with other people is by living in communities that are a way to keep it safe. By having heavy jobs and weapons, they were able to get more food and well as wood to make fire and buildings. But to get most jobs done and to make sure that goods were shared fairly, tools were needed. But an interesting fact is that the Native Americans had an interesting and weird way of seeing how high a tree was. They would bend over and look through their legs.

Objective:
The purpose of this report is to find a very easy way to find the height of something very tall by using the daytime shadow length of the object and its shadow being down along the ground.

Hypothesis: if the measurement of the known
Using the tape measure, calculate your shadow in inches from the toes to the top of the head. Record the data in a notebook.
Using the tape measure again, measure your actual height in inches, record your data in the notebook.
Divide your height by the length of your shadow and write the number down. This is the proportion.
Locate an object that is too tall to measure, but not so tall that you can't see its entire shadow. For example, like a flagpole or basketball hoop.
Measure the shadow of the object in inches and record the data in your notebook.
Multiply the lengths of the shadow of the object by the proportion. This will tell you the object's height in inches. Divide by 12 to find the object height in feet.

Data / Results / Observations of measures of the shadow of the object:

Measurement 1

26.6 feet
Measurement 2
26.6
First, the result was exactly one foot. As the shadow was measured again, the result was 1ft, 0.9in. Then a third try and the result was 1ft, 1in. The average of the measure of the shadow of the ruler was 1ft, 0.67in, which was converted to 1.05ft. As the calculations of the height of the object began there was a discussion among the students. To solve the object's height, the following formula was used: Object's Height/Object's Shadow = Ruler's Height/Ruler's Shadow.

Using the formula above, the numbers were plugged into the equation and the result was 25.36ft. The answer was taken and used for the percent error. To find the percent error the formula Regular Height of the Object—New Height of the Object/Regular Height of the object, then it was multiplied by 100%. The answer was 5%, meaning that it was not that bad for the first try and it was very close to the object's height.

When finishing calculating the object's height and the percent error, there was another process to be finished. The next step was to choose a partner and measure its shadow. The partner's regular height was only 5.167ft. The result of the height of the shadow was 5.26ft. Again the formula to measure the percent error and the answer was only 2%, meaning that it was not far off from the partner's actual