Name: _______________________________________
Period: _______________________________________
Date: ________________________________________
Coin Investigation
I. Problem: Which side of a penny, the heads side or the tails side, will hold the greatest number of water drops without rolling off?
II. Hypothesis:
III. Materials:
penny
beaker
water
paper towel
eye dropper
calculator
IV. Procedure:
Place a penny head side up on your table.
Fill the eye dropper full with water from the beaker.
Hold the eye dropper about one inch above the penny. Slowly and gently start putting drops of water on the head side of the penny.
Occasionally look at the side of the penny as you drop water on it. Watch the water build up.
Continue putting drops of water on the penny until the water runs off of the edge.
In the data chart, record how many drops of water fit on the penny.
Use the paper towel to dry the penny. Repeat steps 1 – 6 two more times.
Average the three trials for the head side of the penny and record in the data section.
Repeat steps 1 – 8 for the tails side of the penny.
V. Data:
HEAD SIDE OF PENNY TAILS SIDE OF PENNY
Trial # |
# of Drops of Water |
Trial # |
# of Drops of Water |
1 |
|
1 |
|
2 |
|
2 |
|
3 |
|
3 |
|
HEAD SIDE AVERAGE = _________ TAILS SIDE AVERAGE = _______
Which side of the penny held the most water? Why do you think this is true?
Trials number one, two, and three for the heads side often have different numbers of drops. Why are they not always the same?
Create a bar graph of the three trials for the heads and tails side of the penny
VI. Conclusion:
The hypothesis that _____________________________________
__________________________________________________________(fill in with your hypothesis) was proven ________________ (correct / incorrect) because ______________________________________________________
__________________________________________________________________________________________________________________________ (give specific data to support your idea)
The errors that could have contributed to this investigation are: __________
__________________________________________________________________________________________________________________________
This can be applied to the real world because _________________________
2 PERIODO CIENTO TREINTA Y CUATRO DE
2 PERIODO NOVENTA Y CUATRO DE SESIONES
2 PERIODO NOVENTA Y TRES DE SESIONES
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