1. Length Investigation
Aim: to investigate the relationship between a person’s height and how
far the can jump.
Hypothesis: I predict that a person’s height will be longer than the
person can jump.
Materials:
Measuring tape
Pencil
Clipboard
20 people
Masking tape
Method:
1. Put a long strip of measuring tape vertically on a wall.
2. Put a ruler on a persons’head and then put a piece of masking
tape with their name on it right above the ruler.
3. Repeat this for19 people.
4. Write down your results in centimeters.
5. Ask a person to do a standing jump.
6. Do not jump on smooth ground because he/she might slip and
hurt themselves.
7. Then measure how long they jump by putting the end of the
measuring tape with the 0 at the beginning ofthe jump.
8. Pull it to to where he or she landed.
9. Repeatfor 19 more people.
10. Write the results onto your scrap piece of paper.

2. Results:
Y-Value 1
155
150
145
140
Y-Value 1
135
130
125
0 100 200 300
X-axis = jumping length (cm)
Y-axis = height (cm)
Conclusion:
The average height is 141cm and the average jump is 157cm. So on
average, a person can jump 16cm further than their height.
Also, the results show that taller people jumped further than shorter
people. I can see this on my chart. It shows a mostly linear relationship
between height and jump. But, it’s not true for every person. Some short
people jumped a long distance and some taller people jumped a short
distance. So, sometimes jumping distance depends on the build of
someone’s body.

3. Discussion:
Our sample size of people was 20 and the ages were from 9 to 10. But if
we would have to get amore accurate view of the children in the world
we would have measure even more than ten thousand.
We measured the difference between a person’s height and jump. I think
that how far someone jumps depends on how their body is built and
also I think that people with longer legs can jump further but also small
people can jump, it just depends on if they are a good jumper or not.
We had difficulties getting all the jump measurements correct because
people mostly couldn’t stand still after landing from their jump. But also
a lot of the cold weather made it more difficult for us to work because
every body was so frozen that they couldn’t do very accurate jumps.
I think that it would be interesting to do this experiment to adults.