Wednesday, March 18, 2020

Ideas for Engineering Science Fair Projects

Ideas for Engineering Science Fair Projects Engineering science fair projects can involve designing, building, analyzing, modeling, or improving a device. You can also test or create materials. Here are some specific ideas for engineering science fair projects. What is the best material to put in a sandbag to block water, such as during a flood?How tall can you build a tower using only a sheet of ​paper? You can cut it, fold it, crumple it, but only use that single material. What works best?Compare the characteristics of a structure that is made using different materials. You can compare strength, corrosion resistance, and elasticity. Be creative. The trick is to make certain your measurements are truly comparable to each other.What can you do with a swim cap to optimize its ability to decrease drag in water? Can you alter the shape? Does one material work substantially better than another?Which type of paper towel absorbs the most water? Which brand absorbs the most oil? Are they the same brand?What differences do you note in the ability of different soils to support a structure?What type of paper airplane flies the furthest and stays aloft the longest?How can you map a magnetic field? Can you construct a device, using iron filings, that can be reused for field mapping? Construct a Lego building. Now try to make the same building on an incline, such as a 30-degree slope. What changes do you need to make in order to make it stable?How does a change in the construction of a parachute affect flight? Parameters you could examine include size, shape, material, and/or method of attachment.

Monday, March 2, 2020

Translating Since in Spanish

Translating Since in Spanish The English word since has several meanings and can function as at least three parts of speech - adverb, conjunction and preposition, and they cant all be translated to Spanish the same way. Following are some of the most common ways of translating since; this is not a complete list, although usually one of these can be used in most situations. Since When Since meaning from a certain time forward: When using a date or time, the preposition desde can usually be used: Nueve periodistas espaà ±oles han muerto en conflictos desde 1980. Nine Spanish journalists have died in conflicts since 1980.Desde hace una hora ya no tengo trabajo. I have been without work since an hour ago.Estn en huelga desde la semana pasada. They have been on strike since last week.Mi madre desde entonces no es lo que era. My mother since then isnt what she used to be. Note that as in the examples above, the present tense of the verb is used even though the action began in the past. When since is used by itself as an adverb, it usually is the equivalent of since then, so desde entonces can be used: No ha llovido desde entonces. It hasnt rained since. Desde que can be used in constructions such as the following: Parece que pasaron 15 minutos y no 15 aà ±os desde que nos fuimos. It seems like 15 minutes have passed and not 15 years since we went away.Desde que trabajà © aquà ­, he tenido muchas oportunidades. Since I started working here, I have had many opportunities.Desde que te vi no puedo dejar de pensar en ti. Since I saw you I cant stop thinking about you. Since Why Since as introducing a reason: When since is used to explain why something is being done or occurring, you often can use one or more of the words or phrases of causation. Other words or phrases can be used in addition to those below: Como porque tengo hambre. I am eating since I am hungry.Como Henry tenà ­a miedo a volar, rehusà ³ ir a Londres. Since Henry was afraid to fly, he refused to go to London.Dado que soy celà ­aco  ¿quà © alimentos puedo injerir? Since I have celiac disease, what foods can I eat?No importa, ya que es sà ³lo un sueà ±o. It doesnt matter, since its only a dream.