Make a Carrot Battery This activity uses a common carrot and two different metals to make a enough electricity to run a small digital clock. Materials: Two Large Raw Carrots; 2 Pennies; 2 Large Galvanized Nails; 3 pieces of 6" long wire; Small Digital Clock (Tandy (Radio Shack) or Maplin - "Stick-on Timer" £3.50/ $4.99. The digital clock can be extracted from an inexpensive alarm clock or it can be purchased from an electronics store. Slice of about 1 inch from each carrot and discard. Place
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succeed from rags to riches and we already proved that to the world. From any kind of liquids that contains electrolytes‚ we can produce electric current out from it. Following an experiment from the Mesopotamians and today’s modern‚ “fruit battery”‚ we have constructed a simple machine that can be used at any time of need. Background Of The Study A thorough research for an exemplary Functional Investigatory Project that could be used as an inspiration came from the media such as
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Project Title: Fruits and vegetables have voltage? Problem & Purpose: The purpose of the experiment is to understand how battery works and find out which fruit and vegetables that we eat can be used as an alternative way for a battery source. I become interested on seeing how batteries where used to power up my flash light and toys.
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ABSTRACT A Fruit battery is a device used in experiments proposed in many science textbooks around the world. It is made by inserting two different metallic objects‚ for example a galvanized nail and a copper coin‚ into an ion bridge (for example a lemon‚ a potato or paper soaked in salt water or acid). The copper coin serves as the positive electrode or cathode and the galvanized nail as the electron-producing negative electrode or anode. These two objects work as electrodes‚ causing anelectrochemical
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Science Research Paper: “Potato Battery” I. Problem a. Main Problem This study aims to prove whether fruits and vegetables are good reserves of electricity. The potato‚ known for its high Phosphoric Acid and Sulfuric Acid‚ has been as our chosen fruit to prove and conduct our answers upon the accessibility of fruits and vegetables as an effective renewable energy source. b. Sub-Problems To further provide extra and specific information‚ the researchers have decided to add the following
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BATTERIES What is a battery? A battery is a container consisting of one or more cells carrying an electric charge and used as a source of power. SECONDARY BATTERIES * rechargeable * high cost (short-term) low cost (long-term) * used in objects with high energy requirements: e.g. mobile phones‚ power tools * require special handling‚ containment & disposal * limited interchangeability * long life time * produce smaller amount of waste (flat discharge curve)
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The Ear and Hearing Loss The ear is the organ of hearing and balance in vertebrates. The ear converts sound waves in the air‚ to nerve impulses which are sent to the brain‚ where the brain interprets them as sounds instead of vibrations. The innermost part of the ear maintains equilibrium or balance. The vestibular apparatus contains semicircular canals which in turn balance you. Any movement by the head‚ and this apparatus sends a signal to the brain so that your reflex action is to
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LIMITATION OF SIGHT AND HEARING INTRODUCTION Humans have sight and hearing limitation. Without any devices‚ our sight and hearing was limited. Most of the limitation of sight can be overcome with the help of certain optical instruments such as magnifying glass‚ microscope‚ binoculars and others. The range of frequency of hearing in human 20 Hz to 20 000 Hz. It was different according to the age of a person. Hearing limitations can be overcome by using devices such as microphone‚ stethoscope‚ earphone
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and the Hearing Impaired Students who are hearing impaired should be provided with special needs in a way that addresses the student ’s individual differences and needs. Advances in research on effective instructional practices can provide guidance for general education teachers and special education teachers who have little or no training in methods for students with hearing loss. Students who are typically classified as deaf or hard of hearing are described as individuals with hearing loss
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them as a diagnosis or problem that needs fixed. We get so preoccupied with running the standard battery‚ finding their diagnosis‚ recommending some sort of aid‚ that we forget that they are more than just their hearing. There’s other parts of a person that are intertwined with their ability to hear. Simulating a mild conductive loss reminded me how debilitating losing just a small portion of my hearing can be. Different situations presented their own obstacles and challenges that we sometimes not
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