# Lab 10 - Experiment 10-1 (The Disorder of Tossing Coins)...

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Experiment 10-1 (The Disorder of Tossing Coins) Objective : To demonstrate the law of decreasing disorder. Results, Explanations, Conclusions : For this experiment we tossed ten coins on the table and recorded the number of heads that appeared. We did this thirty times. Then we graphed the data with the x-axis representing the number of heads that appeared (1 to 10). The y-axis represents the number of times that each number of heads appeared. The graph that was created does resemble a bell curve because there were a lot that appeared in the middle and not so many on both sides and they followed a pattern. The ratio of heads to tails that would show the most amount of order was 10 to 0 or 0 to 10. They would show the most amount of order because they are all the same. The ratio that would show the most disorder would be 5 to 5. They are furthest away from order because of the law of increasing. The numbers of heads that came up most frequently was 7 and 5. This is because these numbers are in the middle and create the greatest amount of disorder, and everything goes towards disorder. The law of increasing disorder states that a reversible process does not change the total amount of disorder in the Universe, and an irreversible process increases the total amount of disorder in the Universe. Teaching Applications : -“Yahtzee”: For this experiment have the children play the game Yahtzee. Explain to them the idea of the law of increasing disorder. Show the children that the probability of getting a Yahtzee is low and it is unlikely that it will occur very often in the game. Discuss with them that this is the law of increasing disorder at work. -“Clean Up”: In this experiment have the children go home and clean up their room to where it is spotless. When they come back to school ask them if it is clean. Then have them observe what happens over a week time period. Naturally their room is going to go to a state of disorder because that is how it naturally occurs in the Universe. Diagram : Table :

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Experiment 10-2 (Rusting of Iron) Objective : To demonstrate oxidation. Results, Explanations, Conclusions : For this experiment we stuffed some steel wool into the bottom of a glass and we inverted it in a bowl partially filled with water. The steel wool did not touch the water and there was air space between the steel wool and the water. We left it alone for a few days and then inspected it. The chemical reaction that had taken place to create the rust (iron oxide) was oxidation.
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## Lab 10 - Experiment 10-1 (The Disorder of Tossing Coins)...

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