1. Length Investigation
Aim:
To investigate the relationship between a total finger length and arm
length.
Hypothesis:
I predict that arm length is longer than finger length.
Materials:
paper
20 people
pencils
clipboard
measuring tape
Method:
1.Make a table with 8 columns and 19 rows.
2. Write names on the left column of the graph.
3. Write finger 1to5,total finger and arm in the other columns.
4. Write all the names of the volunteers.
5. Measure finger and arm length with a measuring tape.
6. Record finger and arm length in the table.
Results
Name Finger Finger Finger Finger Finger Total Arm
1 2 3 4 5 finger
Simon 5cm 6cm 7cm 6cm 5cm 29cm 58cm
Sang woo 5cm 5.5cm 7cm 6cm 5cm 30cm 58.3cm
Takumi 5cm 6cm 7cm 6cm 5cm 29cm 56cm
Genjiro 5cm 6cm 6.2cm 6cm 4.5cm 27.7cm 56cm
Nina 5cm 6cm 6.5cm 5.8cm 4.4cm 27.7cm 56cm
Krishn 5cm 5.5cm 6cm 5cm 4.5cm 26cm 52cm

2. Adam 5cm 6cm 6cm 5cm 4cm 26cm 53cm
Ki Jung 5cm 6cm 6.5cm 5cm 4.5cm 27cm 54cm
Ki joo 6cm 7cm 8cm 7.5cm 6cm 33cm 60cm
Alaa 5cm 6cm 7cm 6cm 5cm 30cm 61cm
Justus 6cm 7cm 8cm 7cm 6cm 34cm 58.5
Grace 6cm 6.5cm 7.5cm 7cm 5.5cm 32.5cm 54cm
Hena 5cm 6cm 7cm 6cm 5cm 29cm 56cm
S-C 6cm 6cm 7.5cm 6.5cm 6cm 32cm 59cm
Xella 5.5cm 6.5cm 7cm 7cm 5.5cm 31.5cm 54cm
Dennis 5cm 5.5cm 6cm 6cm 5cm 21.5cm 53cm
Yen Yen 5.3cm 7cm 7.3cm 7cm 6.5cm 33.5cm 59cm
Qi Qi 5cm 6cm 8cm 7cm 5cm 31cm 56cm
0/18 peoples finger were equal to the arm length
Conclusion:
My hypothesis were correct. Arm length is longer than finger length.
Discussion:
The results were made by measuring the person`s fingers lengths and
comparing with an arm length and seeing if it is the same. In 9~11 year
olds, the average finger length is 30cm arm average is 57cm which
makes the arm length 27cm longer than finger length.
It may be slightly incorrect because we didn`t have enough time to
check twice and we may have made small measuring errors.
Next time I would like to find the relationship between leg length and
height.