diffusion I will be using potato discs‚ of the same size and mass‚ in different concentrations of sugar solution to find out whether the mass of the discs increases or decreases depending on the concentration. I predict that when the sugar solution is 0% the mass will increase as there is less sugar in the water than in the potato. The water will then travel through a partly permeable membrane into the potato from outside. When the sugar solution is 20% the mass of the potato will decrease as there
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The potato’s introduction into Europe proves to be one of the most significant examples of a foreign food crop being able to extensively affect the lives of a an Old World Population. Before the assimilation of the potato crop into the majority of Europe’s agricultural landscape‚ peasant populations constantly faced famines while current food sources provided little nutritional value and were not efficient sources of energy. As Europe adopted the brown tuber‚ people were provided with a far more
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refracting) * The key scientists (Ptolemy‚ Copernicus‚ Brahe‚ Kepler‚ Galileo‚ Newton‚ Hubble‚ Halley‚ Hawking & Oort) **Those in bold have been covered since the winter break and will be the main focus of the quiz. Hint: Studying science is like studying a new language. Including the terms from before the holiday we have studied more than 40 new vocabulary words this unit. You need to really know and understand these terms. You need to be able to read a question that includes the
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Abstract My science fair project is about the sound transmission through different veneers. A veneer is the outer part of the house. It can also be called a siding. The veneers I used were brick‚ cement fiber‚ and vinyl. I used these because they were three very common veneers. I thought if I used common veneers it would make the project mean more because people can see sound transmission through common sidings. The way I built the cement fiber and vinyl siding boxes was‚ I cut plywood sides
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Title: Osmosis and water potential Aim of the experiment: Finding the water potential of potato. Biological principles: Independent variable: concentration of the solution. Dependent variable: percentage changed in weight of the potato strips. Controlled variable: size of the potato strips‚ it can be controlled by cutting the length of the strips. Procedure: Table 1. Concentration of sucrose solution table Concentration/ M | Sucrose Solution/ ml | Distilled
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Saratoga - as she took home $50‚000 from the Intel International Science and Engineering Fair‚ which took place in Phoenix this week. The device will make waiting hours for a phone to charge a thing of the past and the gizmo packs more energy into a smaller space than traditional phone batteries and holds the charge for longer. Eesha Khare made the breakthrough by creating small super capacitor that can fit inside a cell phone battery and enable ultra-fast electricity transfer and storage‚ delivering
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The purpose of my science fair project was to investigate more about Jupiter. I researched what Jupiter contains inside and when Jupiter was discovered. I choose this project because I went to Washington D.C and went to the Air and Space museum. I learned more about space exploration not specifically on Jupiter. Since I learned more about Jupiter and that Galileo Galilei used a rudimentary telescope to discover Jupiter. That’s when I got interested. Materials were collected to make Jupiter and their
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By: Eugenia Collier Sweet Potato Pie Eugenia W. Collier is an AfricanAmerican writer and critic best known for her 1969 short story "Marigolds"‚ which won the Gwendolyn Brooks Prize for Fiction Award. Born: 1928‚ Baltimore‚ Maryland‚ United States. Books: Breeder and Other Stories. Education: University of College Park‚ Columbia Howard University. Maryland‚ University‚ Building Backgrou Sharecropping nd This was a farming system practiced in the South in years between the Civil War and
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INTRODUCTION : • Who invented the computer? • What is computer? • How did the computer evolve? • Where did it start? Charles Babbage‚ a British professor mathematics is the man who invented the first computer in 1837. It was basically an mechanical type of calculator that also had a memory. The computer was powered by steam engine and used punched cards for programming. A computer is a general purpose device that can be programmed to carry out a set of arithmetic or logical
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THE IRISH POTATO FAMINE Pre-Famine History The potato was introduced to Europe sometime in the 16th century. There are many theories on how it arrived‚ but the one with the most credibility is from a case study done by Theresa Purcell. She explains how the white potato‚ also known as the Irish potato‚ originated in the Andean Mountains and was brought to Europe by the Spaniards. The potato was originally classified in the same family as the poisonous nightshade so people refrained from eating
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