Science research

Fun activities – Working with math fractions

admin — Fri, 22 Oct 2010 04:18:23 +0000

During our years of elementary Math tutor in a fun working groups. Although the level of work on primary groups is usually very simple, subtraction, multiplication and division of fractions, it remains important to our future in Algerba 2 help. Once again I repeat that even when working with fractions can be difficult and sometimes complicated even bother mathematical activities that make learning fun and easy to create factions.
There are some rules for dealing with groups that regard that we do fun activities:
1. Add or Equivalent Fractions with like denominators

• Add or subtract the numerator and the denominator the same.
2. Add subtract fractions with different denominators

• Finding a common denominator among the least common multiple of the denominator and multiply the denominators.

• Convert the two fractions; you simply divide the denominator by multiplying the numerator and denominator.

• Add or subtract using the rule for adding fractions same denominator.

3. Multiplying fractions

• Multiply the numerator and denominator.

• The product of the numbers on the product of the denominator is the fraction that results.
• Simplify the resulting fraction, when the counter

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Problem Solving in Mathematics – Why our children do not

admin — Wed, 13 Oct 2010 18:24:26 +0000

Many people are afraid of Math answers. Why? This may be because I remember the earlier problems with mathematics have had problems. Or think they do not think the College algebra, math problems because they are “too serious”, “I cannot, or do not know how to solve the problem, to see that the real question. If you do not solve the problem in two minutes, think never understood. Or just do not know where to start. These thoughts are typical of what solution to the teacher to the student’s problems. I agree with many of them at some point, but I think there is a big problem. I think we have our students who are not our fault!

What we have learned how to fix

Have with the traditional education most of us come to the conclusion that there is usually a right or wrong answer to a problem, as such, we tend to our most urgent problems related to a “right” answer study as if we x by solving a mathematical problem. But in the business world, many problems to be clarified in further studies. Instead, they can increasingly confuse. Please visit our website if you want to get help about Algebra 1, Math problem solver, Linear equations, Algebra solver and Square root calculator.

Middle School Science Projects – Turning Non-Experiments Into the Real Thing

admin — Tue, 29 Jun 2010 23:44:48 +0000

Middle school science projects almost always have to be done in the form of an experiment. The trouble for most students is that most of the time, projects that are on the internet or in books are either demonstrations or models. Since they don’t follow the scientific method, neither of these meet the qualifications of the middle school science fair.

The good news is that many times, a model can be used in an experiment, and variables can be added to a demonstration, so that it can be one, too. Here are five examples of projects that are modified to become an experiment.

- How can you make a potato canon? – This is a fun activity, and it demonstrates how cool science can be, but it doesn’t test anything. How can you turn it into an experiment? Vary the trajectory, and ask, “At which angle will a potato canon launch a potato the farthest?”

- What happens when seeds germinate? – This is a great lesson, but what are kids comparing? Turn it into an experiment by testing “At which temperature do seeds germinate the best?” Use different watt bulbs to vary the temperature.

- How do bones change when soaked in vinegar? – This is close to an experiment, but the project I saw didn’t have a way to measure the change. The results of a true experiment must be measurable. Come up with a weigh to measure the amount of weight the bones can support before breaking, and you may just win your middle school science fair.

- How hot can a solar heater get? – First of all, finding the answer to this question may result in a fire! Make it an experiment by testing two different solar heater models. Construct two identical heaters, one with a glass front, and the other with a plexiglass front. Measure the temperature over several days, and see which one got the hottest.

- What happens when you mix chalk and lemon juice? – Studying acids and bases is fascinating, but there are no variables – so it’s not an experiment. Change it up. Soak pieces of chalk in water, a basic solution, and an acid, and note the variance in the weight.

Remember, an experiment is a test of the relationship between two variables that have measurable results that can be replicated. It amazes me that reputable science publications will label any sort of science activity as an experiment. It doesn’t matter that you’re still in middle school type of project isn’t right. You can do better than ‘real’ scientists! Turn a ‘non-experiments’ into middle school projects that will amaze judges, your teachers – and yourself!

By: Kayla Fay

Super Science Fair Projects

admin — Sun, 27 Jun 2010 13:28:00 +0000

Even if kids deny it, winning the science fair is a pretty big honor. It is something a student will get to boast about for years to come. Instilling pride in their school work and sparking a genuine and possible lifelong interest in science is something not many subjects can do through a fair or a competition. Just like in any competition, most children will not want to submit something that will be so-so. Even if it does not win, a science project submitted to the fair has to be world class. It has to be one of the super science fair projects!

Depending on the year level of your child, as well as their branch of science of choice (usually, you have three branches throughout a child’s elementary and middle school life), there are many super science fair projects out there. The first step to getting a super science fair project is to carefully study the rules of the fair. Each fair is different depending on the school or school district. Getting to know the rules, as well as the criteria of what the judges are looking for will help you and your child come up with something worthy of the colored prize ribbons.

Earth Science is the science that studies our world and what it is made of. Think geology, anthropology, carbon dating, and the like. The most famous earth science project out there is probably the baking soda and vinegar volcano which shows how magma can rise from the earth and out over the volcano simulating a volcanic eruption. The project also demonstrates a basic chemical reaction. For a super science fair project that involve earth science though, try coming up with your own system for carbon dating. Study the method behind carbon dating and see if you can probably do the same with a few household tools.

One of the more popular choices for super science fair projects in the lower grades is a project that involves life science. Life science is the study of trees, animals, humans, and all other living things. Something as simple as comparing plant growth will count as a science fair project. In order to win, though, take the project up a notch and try growing plants through a hydroponic or aeroponic system. The most important thing is that your child comes up with a good system that they understand and can present healthy growing plants without the use of soil!

Finally, there is physical science, which is by far the most commonly used concept when it comes to super science fair projects. If you pick physical science as your branch, be ready for the competition! If you have a lesson outline of your child’s physical science lessons, choose a lesson ahead of what they are currently studying, and base the project on that lesson. This will assure you that your child’s project is unique and will throw everyone off by surprise. Being ahead of everyone else in terms of concepts or theory is always a sure winner!

By: Ethan Jeremy

Science Fair Abstracts – How to Write an Abstract

admin — Fri, 25 Jun 2010 12:02:29 +0000

A science fair abstract is an abbreviated report or a summary in brief of the entire project. It is one of the last job of the science project but is of immense importance. It states the essential and most important things about the project. The science fair abstract in a clear and easy language gives the important outlines of the entire project. The abstract is generally around 250 words in length. It should appear at the beginning while preparing the project report and it should also be placed at the display board of the fair. The science fair abstract, when placed at the display board, gives the spectators the condensed version comprising the main elements of the project.

Science fair abstract helps people determine if they want to read the full report. Much more people will read the abstract as any other part of the work. It’s like an advertisement speaking for the work done. If one wants the jury and audience to be excited about one’s science fair project, then writing an exciting, engaging abstract is always suggested.

Since a science fair abstract is so short, each section is usually only one or two sentences long. Consequently, every word is important to conveying message. If a word is boring or vague, it will provide distraction. If a word is not adding something important it should be omitted But, even with the abstract’s brief length, don’t be afraid to reinforce a key point by stating it in more than one way or referring to it in more than one section.

The science fair abstract should always include the following parts -

* Introduction—This is your project’s purpose statement i.e. why was the project undertaken

* Problem Statement—It lays down the hypothesis of the project

* Procedure—give the description of your variables, your approach towards the investigation

* Results—give specific data and the synopsis of the results obtained

* Conclusion—state clearly the conclusion derived

While writing the abstract for the science project one should follow certain specific guidelines and avoid the following –

* Uncommon scientific terms which most people aren’t aware of

* Abbreviations and short forms

* Charts and tables

* Acknowledgements

Given below is an outline to write a science project abstract:

* Title

* Introduction (genera idea about the project)

* Problem statement and the hypothesis (what is that is to be established) Methodology (process employed, materials used etc.)

* Analysis of data (what indication does the data gives)

* Conclusion (what results were found)

* Application (how is the finding of help)

By: Jordan Matthews

Science Fair Projects For Students

admin — Tue, 22 Jun 2010 20:12:01 +0000

Of the many science fair projects for students, few really teach a student a new concept. This is because science fair project rules often suggest that students use science concepts and ideas that students have already learned. Doing a project using learned concepts helps students retain the concept and really understand what they have learned through tangible examples. While this is great for reinforcing learned lessons, more science projects should introduce new concepts to students in order to further interest them in science.

In the realm of physical science for example, the science projects for students learning centrifugal and centripetal force may just ask them to compare bucket rotations. Creating a roller coaster, on the other hand, will help teach students about centrifugal force, and you can further the physics lesson with a discussion on simple and complicated machines. Creating machines can really pique a child’s interest in physics, even if it is just a simple motor that can power the tree house!

A science project for students that tackle life science is a good way to begin introducing young children to biology or older children to molecular biology. Instead of a simple project that compares how plants grow, you can introduce your child to the concept of grafting plants together. Creating a two or three citrus fruit plant is not only useful to your household, but it is sure to garner attention and acclaim at a science fair! What’s more is that your child will learn about how plants grow and how they can survive.

Earth science projects for students can teach students about how to preserve the world they live in. Studies on alternative means of growing crops and how to prevent global warming may not be tackled in your child’s science class, but these concepts are just as important for a child to know. What’s more is that these concepts can lead to projects that introduce new and relevant science concepts to your child. This will put your child ahead of their class in terms of lessons, and with a good possibility of winning the science fair.

For this year’s science fair project, try convincing your child to go for a topic they have not studied yet. For as long as the rules do not prohibit it, it will lead to some great science discoveries between you and your child. Children who study and discover with their parents are likely to do much better in school. It is also a great way for you to spend time together!

By: Ethan Jeremy

Discovering Physical Forensic Science

admin — Tue, 22 Jun 2010 10:12:13 +0000

You have watched it on the TV show CSI, and noted how CSI technicians collect evidence from a crime scene in order determine the who, what, when, where, why, and how involved in a crime.

In a science called physical forensic science, there are four aspects involved. In this article, I will define the four aspects of physical forensic science so that the next time you watch CSI, you will have a better understanding of what police scientists talk about.

What is physical forensic science?

Searching for trace evidence, identifying the type of firearm used by studying its projectile, studying the handwriting of a signature on a document, and analyzing the ridges of fingerprints under a microscope all are a part of the physical aspect of forensic science.

Trace evidence

Trace evidence refers to any small item of evidence such as glass, paint, fiber, hair, or soil. Such evidence puts the suspect at the crime scene or in direct contact with the victim. Matching glass shards found on the victim of a hit-and-run vehicle accident to glass shards taken from the broken turn signal lamp of the suspect’s car is a good example.

Firearms Identification

All you CSI: Miami fans know that this is right up Caleigh Duquesne’s alley. Firearms identification involves the examination of firearms and the bullets they fire, including ammunition, shell casings, shotgun shells, and fired bullets. Police scientists use microscopes or varying types of chemical analysis to identify the type of gun used to commit a crime and match any bullets fired from that weapon or shell casings to a weapon of interest.

Document Analysis

Whenever an important document whose handwriting or authenticity is in question, a document analyst uses handwriting analysis to compare handwriting samples to questionable documents or signatures. Document analysis also may involve analyzing the chemical and physical properties of papers and inks or exposing indented writing–the indentations made on the page underneath one that was written on. In addition, document analysis also includes typewritten and photocopied documents that may have been altered.

Fingerprint Analysis

Fingerprint analysts compare prints found at a crime scene to the fingers, palms, or soles of potential suspects. A print found at a crime scene can be compared with another print stored in a database such as the FBI’s Automated Fingerprint Identification System (AFIS) or from a suspect, victim, or bystander.

Hopefully, all four of these aspects of physical forensic science will give you a clearer picture of what is involved. All law enforcement crime labs use these methods to help bring a crook to justice.

For those of you who are science buffs, this article is food for thought.

By: Fabiola Castillo

Creative Ways To Get Your Child Interested In Science

admin — Thu, 17 Jun 2010 17:02:52 +0000

Not all kids like all subjects, but it seems that science is the hardest for ordinary kids to get interested in. This could be because that a lot of parents themselves are not interested in science and kids seem to pick up on that. Teachers try everything that they can think of to make their subjects interesting and most of the time it works. Teachers who have passion for their subject are a lot more effective in getting kids interested in a subject than teachers who just sit and lecture a student.

As a parent you might be wondering how you can get your child interested in science. The first step is to become active and interested in what your child is doing. This is probably the most important thing you can do to get your child interested in anything. By showing your child that you are interested in what they are doing makes you child feel like they are doing something worthwhile. Because they are feeling important they will approach science with a new zest for learning.

Here are a few tips to help get your child interested in science.

Tip one:
Do not wait for school to start before trying to teach your child about science. Start teaching them stuff at a young age. The great thing about science is that you can gear it towards any age. For example when you are taking a walk in the spring you can talk with your child about why flowers are starting to grow this time of year.

Tip two:
Take advantage of your child’s natural curiosity. Kids love to ask questions, they always want to know how something works, why something does that, how something is made, and anything else that they can think to ask. Rather than telling them the answers simply ask questions of your own. Ask them what they think the answer is and how they came up with that answer.

Tip three:
Do hands-on projects with them to help them learn how to think critically and figure out how things work. For example you can bake cookies with children and teach them about how mixing the ingredients together turn the separate ingredients into something else entirely. You can also teach them about temperatures when the cookies are in the oven. No matter the age you can find some type of hands-on thing to do to relate to science. The key is to engage in conversation with your child and have them think things through.

Tip four:
Help your child get involved in more science related activities at school. Encourage them to participate in the Science Fair and help them with their project. Or if they are involved in Scouts take advantage of their Scouting projects and turn them into a fun science lesson. Your children do not realize just how much science actually affects our every day lives.

Tip five:
Encourage your child to investigate and experiment. The main part of science is investigating what you think and trying to see if it will work. For example if your child wants to play in the snow and build a snowman/snow chair let them try it out. Give them the tools they can use or ask them what they might need and provide it for them. If their idea does not work you can suggest the build the platform first and then put a snowman’s head on the back of the platform. But let them try their ideas without discouraging them.

Science does not have to be boring; by taking the time to answer your child’s question or by having them answer their own question you are teaching them about science. Buying them that butterfly habitat is also teaching them about science. And the best news is it is all fun and interesting for them.

By: Chuck Lunsford

Science And Our Lives

admin — Thu, 17 Jun 2010 07:15:28 +0000

As I have grown older, I have come to appreciate science in ways I never could before. In high school, I couldn’t understand why Dr. Lay, my 12th grade Physics teacher, would be so excited by new scientific discovers. One time, he nearly passed out from excitement, while explaining to us the significance of some old, old lady’s remains. They were calling her “Lucy”. Later, I would come to realize how significant this archaeological discovery would be to the explanation of the evolution of mankind.

Recently, I have found myself as excited as Dr. Lay in a new scientific discovery. The discovery of Dark Energy has brought me in line with Dr. Lay’s passion for new discoveries. Science has unveiled a new form of energy. The Hubble Telescope observed this energy for the first time in 2003. As the telescope has traveled deeper into the galaxy, it has revealed this massive energy source. It has been identified as the dominate energy form in the universe. This energy is being referred to as Dark energy because of its absence of form. It is virtually undetectable.

The discovery of this energy has conflicted previous understanding of the universe. Previously, we believed that the Milky Way Galaxy and its planets were expanding further apart. In addition, the rate by which it was expanding was slowing down to a stop. It was formerly believed that the galaxy would eventually stop expanding and began to retract back towards the Sun. It was believed that the Sun’s gravitational pull would draw all the planets into its center.

These recent discoveries contradict this former belief. The universe is actually being impacted by this invisible force, being called Dark Energy. This force is actually pulling the galaxy further into the universe. It is overpowering the Sun’s gravitational pull and causing the planets to rocket faster to the furthest reaches of the universe.

To simplify this new theory, imagine holding a ball in your hand. Then you decide to use your body’s energy throw that ball into the air. You toss that ball with all your force up in the air. The ball speeds towards the sky. Eventually the ball slows down and begins to stop moving. The force of gravity works against the energy you invested in the ball. The expected result is the ball would fall back to the ground.

But imagine, tossing that ball up in the air. You wait for that ball to come back to you, but it doesn’t. It continues to move upward. It actually speeds up. Imagine that ball speeding at greater speeds up and out of sight into the most high of places of the atmosphere. This is how Dark Energy is affecting the planets in our galaxy.

Consider this concept for your own life. As families, we invest the balance of our energy in our children. We invest our money, time and values in these little balls of potential. As they reach the proper age, we propel them out into the world. They burst from our front doors into far away places; new cities and far away colleges. They land into their own families, into jobs and careers. As they enter into this world, they encounter gravitational like forces working against them. Forces like temptation, lust and laziness sometimes work to keep them grounded. In many cases, our children fall short of our expectations. In some cases these children return back home. Lord help us.

As parents, our resources are limited. We can only buy, teach, or tell our children so much. We have to give them something more powerful than the world’s forces to propel them to the higher heights we envision for them. Like the Dark Energy of the universe, we have to teach our children to submit to a greater power in and around us. There is an unseen force within all of us propelling us to the far reaches of our potential. As humans, we are stretching further out to unknown places and discovering new ideas, new possibilities, new forms of human energy and potential.

It is inevitable that we will, as mankind, continue to move towards our destiny. Much like the planets traveling their course into the far reaches of the universe, mankind is approaching an unknown destiny. In our travels, we are moving at greater speeds towards unseen wonders.

Now, I understand what Dr. Lay was trying to teach us. While we travel through this life, filled with questions and dilemmas, we have a way of understanding the challenges we face. Science helps us uncover the mysterious of the universe and our lives. Thanks Dr. Lay. I get it now.

By: Harlan Hodge

Kids Science Projects Can Warm Your Heart

admin — Wed, 16 Jun 2010 07:07:54 +0000

Everyone talks about the greenhouse effect and how our Earth and its climate are having greenhouse type of effects. What does that mean? You can do a science project that will show this effect and what is happening to our Earth.

Go to your pantry and look for these items. If you do not have them you can go to your local store and get these items:

2 glass containers that need to be the same size and shape A 1 gallon plastic storage bag 4 cups very cold water Ice cubes

Fill each glass container with 2 cups of the cold water. Add ice cubes to each jar. You will want to put the exact same amount of ice cubes in each jar. I would suggest 6 ice cubes in each jar.

Put one of the jars in the plastic bag and seal it shut.

Put both containers in the sun together and let sit for at least an hour.

You are trying to create the greenhouse effect with the container in the plastic bag.

At the end of 1 hour or a little longer remove the jar from the plastic bag and immediately insert a thermometer to measure the temperature of the water.

After you record this temperature measure the degrees in the water that was not covered.

When you placed the jars in the direct sunlight the air inside the bag became very warm. When you have a greenhouse it lets light inside which allows the sun’s energy and also heat. Since the heat filters in but cannot escape because you have made a plastic barrier it stays in the enclosed area and increases the temperature. When you demonstrated the science project above you created your own greenhouse and showed how warm you could get the water. What if you left that for two, three or four hours?

Think about what is happening to the Earth. There are chemicals that are creating a type of plastic bag around the Earth and it causes our air to get warmer because of the energy of the sun creating heat and it being retained in this enclosed area.

Even though you did not heat the water to boiling think about your car in the hot summer. This is what happens when you go in to work and leave your car outside all closed up all day. When you return at 3pm the car is scorching hot. This greenhouse effect has caused your car to be so hot you sometimes cannot even touch the steering wheel.

This science project is a great idea about what we are doing to our planet.

By: Lesa Bolt