Science TBC

If you want to test on some activities for your science fair project, here are simple, yet practical experiments about volcanoes and earthquakes: salt volcano, baking soda volcano, and table top earthquakes.

There are several experiments that you can work on for your school activities. It ranges from the simplest to the most advanced testing, which can be done even by children. Here are samples of experiments related to volcanoes and earthquakes that you might want to try on such as:

Salt volcano

Although this does not have any direct connection with volcanoes, but the effect of this experiment somehow represents the activity that is going on inside a volcano when lava is released. Here are the things needed and the instructions to be followed:

Needed materials

* Drinking glass
* Salt
* Vegetable oil
* Water
* Food coloring (optional)

Instructions

Pour water inside the glass up to approximately 3 inches deep. Add one-third cup of vegetable oil and wait until it completely separates from the water. Pour few drops of food coloring to give a more dramatic effect. Slowly shake salt in it and see what happens. Since salt is heavier than water; therefore, it sinks at the bottom together with drops of oil. As the salt dissolves, it slowly releases the oil in a form of bubbles. You may add more salt to sustain the effect.

Baking soda volcano

Just like a lava that is about to pour out of the crater, this experiment also illustrates how baking soda reacts with vinegar to form bubbles. So simple, all you need is to gather necessary materials and carefully do the steps-to-follow.

Needed materials

* Baking soda
* Vinegar
* Container
* Paper towels

Instructions

Put some baking soda inside a container. Slowly add vinegar and observe the reaction. Avoid getting near because the bubbles might accidentally hit your eyes. It is the released carbon dioxide, which causes the effervescence due to the neutralized sodium bicarbonate.

Table top earthquakes

This equipment is used to measure even the slightest movement of the earth. This is a useful project because students will find it easier to understand how motion directly affects the plates that make up the earth. However, this is a bit complex because it needs several materials to be able to set up and operate such machine. For detailed information about this experiment, kindly go over surfing the Internet. There are several sites where you can find good examples and detailed explanations of a given science fair project. From there you will find the things needed, instructions on how to construct the machine, and the explanation about physics in general.

In any experiment, it should always be under the supervision of an adult because even the easiest activity can cause freak accidents.

Students have many options when it comes to the development of their science fair projects. If students are interested in medicine or biology then this project is a great option. It will examine how different types of liquids are processed by the body.

Hypothesis

The hypothesis for this science fair project is that sugary liquids produce less urine then salty liquids do. The dependent variable in this hypothesis is the amount of urine produced and the independent variable in this hypothesis is the type of liquid that is drunk.

Supplies Needed

This science fair project will need several key pieces of equipment. First of all the student will need at least six to twelve test subjects that are generally healthy. The student will then need a urine collection and measuring device for each of their test subjects. These can be picked up at a medical supply company. The students will also need collection sheets which will be handed out to each test subject. Latex gloves can also be used when collecting urine volume samples.

The Experiment

To start with the student will need to conduct a control experiment. This will create a baseline of data to compare test results to. The control experiment will basically see how much urine is normally produced by each test subject on a daily basis. To collect this data each test subject will be given a urine volume collection container that fits into their toilet. They will then write down the volume of urine that they eliminate from their bodies on a daily basis over a week.

The test experiment will begin by dividing test subjects into two groups. Group A will be given sugary drinks and Group B will be given salty drinks. Each group will be assigned the same volume of liquid. The test subjects will be instructed not to drink anything other than their experiment liquids during the day. They will then monitor their urine output during test day 1, 2 and 3. The groups will then be given the other liquid type and the will be tested for another three days.

Data Analysis

The analysis of the data will involve several steps. First of all the students will need to organize the data by finding the average urine output for each test subject in the control experiment. This will create the baseline data. Next the average urine volume output for each test subject will be calculated for the sugary drink test. Finally the average urine volume output for each test subject will be calculated for the salty drink test. The results will be compared. Students will need to look for trends that indicate that the sugary drinks lead to a higher urine output change compared to the control than the salty drinks did to prove the hypothesis could be true. Otherwise the hypothesis is false.

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When you read a scientific journal, you will notice that the articles are clear and well structured. Researchers should be acknowledged for the content of their written documents, but when it comes to checking the details, experienced editors deserve the credit. Unknown to some readers and new writers, science proofreading is necessary for all written research work. Researchers who have experience publishing their scientific findings know that this often overlooked process contributes to the overall quality of their research.

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From missing semicolons to misspelled words, a scientific editor can check and correct the mistakes in your document. A good proofreader will read each sentence of the document to look for punctuation and spelling errors that you may have missed. The editors can make the necessary corrections because they are language experts.

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Pheromones are the smell chemicals that signal sexual attraction or repulsion. No matter how much you like someone, if they do not smell good to you, the sexual attraction just doesn’t work. It’s said that women on birth control pills will subconsciously seek out men who smell like good protectors and fathers because the pill simulates pregnancy. But sometimes when these women go off the pill, they suddenly find their mate doesn’t smell attractive anymore. Bummer!

In conclusion: the attraction chemicals fade at about 2 to 3 years and are replaced by the bonding chemicals. The bonding chemicals actually interfere with the exciting “in love” chemicals and create a more “comfortable” bonding love which lasts another few years.

Evolutionarily, the theory is that the couple stays together long enough to raise a child out of infancy. Then both men and women (yes, women are not built for monogamy either) move on and repeat the process. It’s good for the gene pool.

So, if you are addicted to the love/lust chemical high, it’s very important to keep your sexual and romantic life exciting and new. How to do that? Well, that’s a good question for a relationship/marriage counselor!

Resources: The Chemistry of Love” by Dr. Susan Block http://www.counterpunch.org/block02122005.html “The Science of Love Cupid’s Chemistry” by Claire McLoughlin http://www.thenakedscientists.com/HTML/articles/article/clairemcloughlincolumn1.htm/ Labels: chemistry, love, relationships, self-improvement, sexuality