vegetables) using two strips of metal. The most readily available combination is copper and zinc. The zinc piece can be taken from the casing of an old carbon "D" cell (battery); some zinc coated nails may work as well. The copper can be a coin containing a high amount of copper. (Note: some recent copper coins‚ including the newer U.S. pennies‚ contain low amounts of copper mixed with zinc. If in doubt‚ use a pure copper strip.) They are stuck into the lemon‚ and wires are attached to each one. The
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controlled experiment is based on the Statue of Liberty. It is made of copper so I am using pennies in my experiment. (nps.gov. n.d.) My observation is that acid rain corrodes metals. My question: does acid rain corrode metal? My hypothesis is the obvious‚ yes metal structures are in danger of being corroded because of acid rain. That is also my prediction. The experiment will take place over a one month period. I will take two pennies (minted before 1983) and place each one in their own glass. (U
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and her brother‚ Neeley‚ like other Brooklyn kids‚ collected rags‚ paper‚ metal‚ rubber‚ and other junk and hoarded it in locked cellar bins or in boxes hidden under the bed…Paper wasn’t worth much. They got only a penny for ten pounds. Rags brought two cents a pound and iron‚ four. Copper was good—ten cents a pound” (Smith 7). This
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the earth‚ taking out new treasures and burning them. Thus was produced‚ some 6000 years ago‚ a new mineral‚ and from that a new material to which‚ much later‚ we have given the name copper metal. And that day began the Copper Age. In fact‚ this was the beginning of both mining and metallurgy. Not satisfied with copper any longer than a few hundred years‚ he began experiments with other metallic ores like tin‚ zinc and lead‚ and with a stroke of metallurgical
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A Chemical change is any change that results in the formation of a new chemical substance. It is something that everyone learns about in school‚ but never really tries to see it in the real world. We all know the basic examples; baking a cake‚ burning wood… etc. What about the examples that are happening around us. For example‚ the Statue of Liberty has been through a chemical change. It was first a dull brown color‚ and now it is a green color. That happened due to a chemical change. During the
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Hypothesis I think the 1st cube was aluminum I think the 2nd cube was steel I think the 3rd cube was brass I think the 4th cube was copper I think the 5th cube was acrylic I think the 6th cube was oak I think the 7th cube was pvc I think the 8th cube was pine I think the 9th cube was poplar I think the 10th cube was nylon Materials Aluminum Steel Brass Copper Acrylic Oak Pvc Pine Poplar Nylon Ruler Triple beam balance Calculator Writing Utensil Method 1) Thought of my hypothesis
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the way things work in a battery by using everyday items we see around the house. The goal is to learn more about electricity‚ and possibly a few new science terms along the way. III Materials: * Two Potatoes * Two short pieces of heavy copper wire * Two common galvanized nails * Three alligator clip/wire units (alligator clips connected to each other with wire) * One simple low-voltage bulb with bulb socket IV Procedure: 1. Remove the battery from the battery compartment
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Chapter 1 The Problem-And It’s Background Potato as an alternative battery for scientific calculator is the chosen topic of the researchers. The researchers thought of many topics but the topic about the scientific calculator get their attention. They thought that scientific calculator is very useful to students especially to 4th year students. A scientific calculator is a type of electronic calculator‚ designed to calculate problems in science‚ engineering‚ and mathematics. They have
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introduces the chapter with a very peculiar way; the words “when I was six or seven years old” present her as a very active individual in her youth. This is apparent and continues throughout the chapter. As a child she was able to see the value in a copper
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Science POTATO BATTERY: THE ADVENT OF TECHNOLOGY TABLE OF CONTENTS RESEARCH……………………………………………………………………...I PURPOSE……………………………………………………………….….……II DISCUSSION………………………………………………………………...…IV MATERIALS AND PROCEDURES……………………………………….......V RESULTS…………………………………………………………………....….VI CONCLUSION……………………………………………………….….….…VII BIBLIOGRPAHY……………………………………………………….….……VIII RESEARCH The potato is a starchy‚ tuberous crop from the perennial Solanum tuberosum of the Solanaceae
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