Introduction: This project is one of the most famous electricity projects that can be performed successfully by most students in the age of 10 to 16. It helps students to learn about producing electrical energy using chemical energy. Since the same method is used to get energy from many fruits and chemicals‚ this project has many names. Following are some of the other names or titles for this project: |Fruit power or fruit battery
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that water is essential to life. Water makes up well over half of the human body. Drinking enough water has numerous benefits including increased energy‚ weight loss‚ headache prevention‚ glowing skin‚ flushing out toxins and more. Something I have been struggling with recently is making sure I drink enough water. Sometimes I am forgetful‚ and other times I would rather just drink sweet tea or a soda. None of my excuses are good enough though. I can tell a difference when I am hydrated in how
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Purpose: The purpose of this experiment is to determine the number of moles of water molecules of crystallization of a sample of hydrated Barium Chloride. This can be calculated using Gravimetric Analysis and to indirectly determine the percent composition of a hydrate by taking advantage of its chemical properties. Introduction: Gravimetric procedures are analytical methods in which the results are determined from the masses of starting materials and products. These methods
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Fundamental Science Salt water egg experiment Result Some objects float on top of the ocean‚ and other objects sink to the bottom. Why? In this salt water egg experiment we can find a solution for this question. It was noted that to make the egg float salt is needed to dissolve into fresh water. When the egg was lowered into the fresh water container it started to sink. But when salt was added to the container the egg started to float. Adding salt to the water squishes more molecules
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Purpose: How will salt and plain water affect plant cells? Hypothesis Clear water: If you place carrots and celery in plain water they will become flaccid and then eventually start to loose its colour and pieces of the celery or carrots will fall off. I know this because the vegetables will continue absorbing water putting the vegetable in a hypotonic solution. Pieces of the vegetable could break off because the cells are not getting what they need. The cells need to create glucose and oxygen
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Materials: 1. 2 Plastic cups 2. Tap Water 3. Teaspoon 4. Bag of salt 5. Freezer 6. Clock 7. Paper 8. Pencil Procedures: 1. Take plastic cup and pour in one cup water in each 2. Take one teaspoon of salt and mix it in one of cups 3. Put both cups in the freezer 4. Observe. Conclusion: When salt is added to water it slows the freezing process down‚ therefore the freezing point of tap water is higher than the freezing point of salt water. Hypothesis: If... ‚ then...
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drowns it means that their lungs (respiratory system) has been blocked from receiving oxygen by a liquid. Majority of the time it is water that people drown in. “Drowning is the third most common cause of accidental death worldwide‚ accounting for 7% of all injury related deaths” (MedicineNet). Water is the most common way that people drown‚ but the two types of water that is common to Earth in masses are freshwater and saltwater. Both can drown you but in completely difference ways. Drowning in saltwater
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Hydrated Crystals LAB PURPOSE: The purpose of this lab was to determine the percent of water in the given hydrate. MATERIAL/EQUIPMENT LIST: Crucible and cover Clay Triangle Crucible Tongs PROCEDURE: 1. First‚ the crucible and crucible cover were cleaned and dried. 2. The crucible and crucible cover were then placed on the clay triangle and heated with the Bunsen Burner for 3 minutes. 3. After this‚ the crucible and crucible cover
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Heat of vaporisation. f. . Melting point g. Boiling point 4. Why do gases diffuse rapidly? 5. Write the relationship between Celsius scale and Kelvin scale of temperature. 6. Why does the level of water not change when salt is dissolved in water? 7. How can matter change its state? 8. Define boiling. Why boiling is considered as bulk phenomenon? 9. Why does the temperature of a substance remain constant during melting and boiling even when heat is being supplied
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Water is imperative for the growth and preservation of life‚ especially plants. Playing a role from the vary beginning‚ water is necessary in the germination of dry seeds and growth of plants throughout their life cycle. However‚ there are drawbacks to an overabundance of water or a lack of water. Therefore‚ how much water is required to maximize the potential of a given crop? In our experiment‚ we examine the effects of water on corn. Corn is a vital crop to North America‚ and there is a wide draw
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