Science Fair Project Ideas for 12th Graders

Twelfth-grade science fair projects can be interesting and even groundbreaking. High school seniors should be able to identify a project idea on their own and can conduct the science fair project and report on it without much assistance. Most 12th-grade science fair projects will involve proposing a hypothesis and testing it with an experiment. Advanced models and inventions offer other options for a successful 12th-grade project. 12th Grade Science Fair Project Ideas What is the best way to keep the fizz in an opened carbonated soft drink?Find and test a non-toxic antifreeze.Study the toxicity of energy drinks.Measure the toxicity of silver-mercury amalgam fillings.Determine which type of invisible ink is the most invisible.Measure crystal growth rate as a function of temperature.Which pesticide is most effective against cockroaches? ants? fleas? Is it the same chemical? Which pesticide is safest for use around food? Which is friendliest to the environment?Test products for impurities. For example, you could compare the amount of lead in different brands of bottled water. If a label says a product does not contain heavy metal, is the label accurate? Do you see any evidence of leaching of hazardous chemicals from plastic into water over time?Which sunless tanning product produces the most realistic-looking tan?Which brand of disposable contact lenses last the longest before a person decides to switch them out?Formulate a non-toxic or biodegradable ink.Make an edible water bottle and compare the environmental impacts of it versus other water bottles.Test the efficiency of different shapes of fan blades.Can bath water be used for watering plants or the garden?Can you tell how much biodiversity is in a water sample by how murky the water is?Study the effect of landscaping on a buildings energy consumption.Determine whether ethanol really does burn more cleanly than gasoline.Is there a correlation between attendance and GPA? Is there a correlation between how close to the front of the classroom a student sits and GPA?Compare the wet strength of different brands of paper towels.Which method of cooking destroys the most bacteria?Are hybrid cars really more energy-efficient than gas or diesel-powered cars?Which disinfectant kills the most bacteria? Which disinfectant is the safest to use?

Essay on Intro to Biology Questions - 1550 Words

1. If an endangered species such as the Santa River Woolly Star were to become extinct, what effects might this have on other species? The community of organisms will be greatly affected if the Santa River Woolly Star were to become extinct. The Woolly Star is an interwoven strand in a crossing of organisms that are all dependent upon one another for survival. The Woolly Star also stabilizes the sand after flooding which has a [positive effect on other organisms. 2. What do the J- and S- shaped population curves indicate about the life span of an organism? Organisms that live in a temporary habitat are examples of J shape growth curve. J shape growth curve indicates that the organisms outgrow the amount of resources available and death†¦show more content†¦2. If nature previously recycled nutrients using forest fires as the mechanism, why must we use â€Å"prescribed burns† to accomplish the same results today? Today due to controlling forest fires in the past overgrown shrubs now affect trees. Prescribed burnings are conducted to replenish nutrients into the soil while protecting the trees themselves. Prescribed burning is less hot and less intense so that it can be controlled. 3. What are the similarities and differences between the function of the decomposers and the effects of periodic fires Decomposers and Fires both are the exchange agents of nutrients within an ecosystem. The differences are that the decomposers work naturally whereas fire is now controlled through prescribed burnings. 4. Can energy be recycled? Energy is recycled through the breakdown and return of nutrients back into the soil. This process occurs in a number of ways including the return of nitrogen into the air. 5. Why do ecological pyramids have a wide base and a narrow tip? The ecological pyramid tip is represented by the energy derived from the sun. The energy from the sun is filtered through vegetation and as it goes through the pyramid it is accessed by more and more sources. 6. What are some of the methods used to study weather patterns? Do you think the data collected can help to predict future climatic conditions? Meteorologists study weather patterns byShow MoreRelatedWhy I Am An Engineer907 Words   |  4 Pagestaught me basic algebra. She taught me how to think critically and problem solve. She helped me in all my academic courses, and taught me math from 6th grade trough my junior year in high school. Majoring in engineering was never a question, what type was always the big question. When I was fourteen I underwent a few extensive surgeries. All though the surgeries weren’t fun to experience it peaked my interest in how the body self heals. The idea of becoming a doctor quickly crossed my mind. 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Sexual Assault Against Women Free Essays

Sexual Assault against Women I choose this topic because sexual assault is one of the most offensive crimes committed in our society. Not only is it a threat to the community, but it has a physically and psychologically effect on the victim in many ways. For the last couple of decades, sexual assault, rape, and child molestation has become the focal point of public concerns today. We will write a custom essay sample on Sexual Assault Against Women or any similar topic only for you Order Now According to a 1993 National Crime Victimization Survey conducted by the U. S. Department of Justice, about 500,000 rapes or sexual assaults occur each year (Statistics, March 2010). The Department of Justice states that, â€Å"rape crimes have risen nearly three times as fast as the total crime rate†, although other studies have shown statistics that are in conflict with these numbers; due to the victims that do no report their attacks. For example, the National Women’s Study claims that about 683,000 rapes of adult women occur annually, while the Federal Bureau of Investigation reports 103,000 such rapes each year (Statistics, March 2010). Most lawmakers agree that sexual violence is a problem that requires a lot of attention and investigation. In the mid-1990s, a number of violent crimes were being committed by recently released sex offenders. The media attention motivated many states to pass laws that specify that communities must be notified about paroled sex offender living in their communities. This caused a fear of the people in the community that released sex offenders may commit assaults in their community as well. Alice Walker’s The Color Purple is an excellent account of the life of a woman who must suffer not only social ostracism due to gender and skin color but also women who suffer greatly at the hands of men. This is true in terms of infidelity, physical and verbal abuse, and sexual abuse. The Color Purple revolves around the life of Celie, a young woman growing up in the poverty-ridden South. In order to find herself and gain independence, Celie must deal with all manner of abuse, including misogyny, racism and poverty. When she is a young girl of just 14, Celie is sexually assaulted by a man she believes is her father. She had two children by her rapist, both of who he takes to a Reverend. When her mother dies, this man known as â€Å"Pa† marries Celie to a man she will only refer to as â€Å"Mr. † (Walker, 1985). This is just a fine example of the recollection of a victim. The Violence against Women Act (VAWA) of 1994 marked a turning point in our national response to the problems of both sexual assault and domestic violence. For the first time it considered the ways in which sexual assault and domestic violence were similar: they are both crimes of violence against women, rooted in historical and cultural traditions and attitudes. VAWA also addressed the ways our laws failed to prosecute and punish perpetrators of these crimes of violence, while often increasing the trauma experienced by victims. The act included measures designed to protect crime victims’ rights and provide crime victims with compensation, establish hotlines for sexual assault and family violence victims, establish sex offender registration and community notification, protect women from â€Å"date rape,† and coordinate law enforcement and social services to deal with crime in a unified manner. VAWA is a wide-ranging law which, among other things, mandated research into sexual and domestic violence, funded community efforts against sexual and domestic violence through grants, proposed changes in the evaluation and determination of evidence, affirmed victims’ rights of privacy and equal protection under the law, recommended compensation of victims, and authorized enhanced penalties for repeat sex offenders. Law enforcement officers are highly trained and are fully aware of this Act and how it works. It is the duty of the officer to enforce these laws. One intervention method for the offenders that would restore justice practices is the gaining popularity of â€Å"chemical castration† which is the use of Depo-Provera; it decreases the level of testosterone that men produce (encyclopedia, 2012). Lowered testosterone levels decreases the sexual thoughts and fantasies of the offender. The way this method would impact the victim is by given them a piece of mind of knowing the offender is being mentored and knowing that this could happen to another person. The way the Criminal Justice system can work more efficient to help the victim through a rape or sexual assault is not blame the victim; this was a strategy that was used in pasted which would make the victim feel as if it is their fault. For example, the victim goes to a party and becomes overly intoxicated and wakes up to find herself assaulted sexual, in the past the victim would be the blame because she became overly intoxicated. But what should be done is to encourage women not to precipitate the crime through careless behavior. But blame the offender, because they are the predator in crime and they should be removed from society. As a Criminal Justice professional I would provide more effective assistance to the victim by offering services such as hotline information, victim advocate services, and assist them with police reporting process. Or even offer counseling service and self-defense strategies. Things that could be done to reduce victim blaming are training within the Criminal Justice system and educating the public on victim blaming as well. ? REFERENCES encyclopedia, T. f. (2012, May 05/31/12). Chemical Castration. Retrieved from Wikipedia: http://en. wikipedia. org/wiki/Chemical_castration Statistics, U. S. (March 2010). National Crime Victimization Survey. National Crime Victimization Survey, 2008- -Statistical tables, 26 – 49. Walker, A. (1985). The Color Purple. Harcourt Brace Jovanovich. How to cite Sexual Assault Against Women, Essay examples