Exposure to chocolates:
Materials:
-Four pieces of chocolates
-ruler
Control variable:
-amount of chocolate eaten
-same chocolate piece
-time of waiting
Independent variable: giving girls the chocolate
Dependent variable: Time of reaction
Hypothesis: If the person eats chocolate then the reaction will decrease
Data collected:
No chocolate Chocolate
Modi
Distance(cm)
Time (sec)
Distance(cm)
Time (sec)
Trial 1
56
0.34 sec
32
0.26
Trial 2
28
0.24
28
0.24
Trial 3
35
0.27
17
0.19
Zahra
Trial 1
25
0.22
19
0.21
Trial 2 11 0.35 10 0.21
Trial 3
13
0.23
15
0.19
Rutaina
Trial 1
36
0.27
26
0.23
Trial 2
42
0.29
20
0.23
Trial 3
40
0.28
22
0.21
Zaina
Trial 1
23
0.22
22
0.21
Trial 2
59
0.23
20
0.19
Trial 3
26
0.23
17
0.29
Maya
Trial 1
36
0.27
24
0.22
Trial 2
45
0.30
19
0.20
Trial 3
53
0.33
11
0.15
Procedure:
1- Bring a ruler; make sure the length of the ruler is 99cm long.
2- In a group of five take one girl and make sure she’s sitting on a desk with her hand straighten on the table.
3- The width of her fingers far apart must me the same in every trial.
4- Put the ruler and measure what number it stops to.
5- Do it three times with each five girls.
6- Get all the data for all the three trials and convert it to time.
7- Each girl should do this step
8- After this then we have to record the data
9- Then use this data and create a table and a graph to show the pattern of your results
Conclusion:
Yes we actually had a pattern in our results. Our graph was going down so our graph states the exposure to caffeine does affect your reflex obviously because our graph was going down. When the graph went down it showed that our reflex became much slower. When we tested our reflex before eating chocolate it was faster than when we ate chocolate.