Build Water Rockets Explain how they work and ask the students which of Newton’s laws apply to them. You should talk about what forces are acting on the water rocket to make it move (talk conceptually about the idea of a free body diagram). You should have the force from the ejected propellant acting upwards‚ and the weight and air resistance acting downwards. Talk about how each law applies to the physics of the water rocket. Try to have the students identify which
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Wings of Fire From Wikipedia‚ the free encyclopedia This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (April 2008) WINGS OF FIRE Wings of Fire by A P J Abdul Kalam Book Cover.jpg Book cover for A P J Abdul Kalam’s Wings of Fire. Author A P J Abdul Kalam with arun tiwari Cover artist Photograph courtesy: The Week Subject India journey to self-reliance in technology
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Cork Rocket Target Grade: Hopefully 10 to 14 year olds Objectives: To show student how chemical reactions can react with one another to create totally new compounds. Liquids and solids can combine to create gasses with practical and fun applications. Materials: A litre-bottle‚ Cork (if cork doesn’t fit into bottle‚ either cut it‚ or place paper towels around it so it will fit snugly into neck of bottle)‚ Paper Towels‚ Streamers (or anything light and dangly‚ paper is okay if it is in
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Science! Question Do different water bottle brands have different strengths when it comes to exploding with a chemical reaction from baking soda and vinegar? Variables Independent/Manipulated Variable: Brand of water bottle Dependant/Responding Variables: Amount of time it takes for bottle to explode Whether or not bottle explodes Controlled Variables: Amount of vinegar used in bottles Amount of baking soda used in bottles Same stopwatch used Same day bottles were experimented on Hypothesis I think
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bottled water. Bottled water costs over two thousand times more than tap water. Can you imagine paying two thousand times the price of anything else? How about a ten thousand dollar sandwich? Yet the people of the United States buy over half a billion bottles of water a week. That is enough to circle the earth over 5 times. When bottled water came out most people thought that it was just a passing fad. There was no telling what effects bottled water would have on the general population and therefore had
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Affirmative Action & Why it Should Stay the Same Affirmative action is the broad spectrum of policies designed to redress inequalities in employment and education through a system of preferences to minorities according to Ellen Bailey of Yale University. It was originally designed to help improve opportunities for African Americans during the civil rights movement; however it soon grew to include other minorities groups and women too. In the United States where individuals in certain social‚ racial
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made from recycled plastic bottles or containers. In fact‚ the bottle you recycle in your own town can end up being spun into a pair of mittens worn by a child who lives in Japan. The plastic containers you recycle can take quite a journey once they leave your house. Of course‚ they can also wind up being put to the same use as before. We’re going to explore some unique paths you may not know about. Plastic recycling began in communities in the early 1980s with bottle-deposit programs. Buyers got
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production of 20-ounce soft drink bottle * Flour space occupied: Husky=343.1 sqFt‚ Competitor=351.8 sqFt. Part 1: Calculating the amount of days it will take to product the same amount of products with the Husky’s machine: ((60sec)/(10.4sec))=((amount of cycle per min)*(48 preforms per cycle))*(60min) =Bottles produced per hr. =16‚615.38 Bottles per Hr. *((60/10.4)*48)*60 = (Bottles per hr.)*24hrs =370‚523.08 per day =370‚523.08*365days = 135‚240‚924.2 Bottles per year Major Competitor’s: = Same
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2012 http://kids.nationalgeographic.com/kids/stories/spacescience/water-bottle-pollution/ Tap vs. Bottled Water Bottle water versus tap water‚ which is better for our health; is a question most people find themselves conflicted on which to choose. We have a fascination with bottled water. Somehow‚ somewhere‚ someone decided the tap water was not good enough for us‚ and along came the obsession that water in a bottle was better for us. Most of us would agree that the argument for drinking bottled
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Bottled Water vs. Tap Water In today’s society drinking water from a plastic bottle has become the norm‚ but just a few decades ago this action was not the case. During the late 70’s a French company named Perrier introduced bottled water to America and convinced people of the fact that drinking water from a bottle would make people look cool‚ so they advertised a new fashion of consuming this precious liquid. Companies like Coca-Cola and Pepsico saw the opportunity to start a division of bottled
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