Archive for January, 2013

The Germ Experiment

Now that we know how to spot germs on our hands we can convert it into a full fledged science experiment. The objective is going to be to find out which part of the hand the germs cling to the longest and how the lenght of time spent washing hands affects them.

Besides the Glo Germ Gel and the Ultra Violet Light pen you are going to need a few friends to help you carry out this experiment. First record the area of germ concentration on the individual’s hands before washing hands with soap. Then record the reduced germ concentration areas. Then make them wash their hands for another two minutes thoroughly and see how many germs are left.

You will need to repeat the process with each friend who takes part in the experiment to collect enough data to examine. Now corelate the data to find which parts of the hand are the most difficult to rid of germs. You can divide the hand into sections like palms, fingers, between the fingers, around the fingernails and the back of the hand.

Note down all your observations and formulate the conclusion based on these observations. You can make two lists for after the first hand washing and the second hand washing. It is an easy and interesting science project to do.

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Germs in abundance

There are germs everywhere, or so we have been told. In this fun to do science experiment we are out to prove that there are indeed germs to be found in abundance all around us. Germs are essentially microscopic organisms which are so tiny that they cant be seen by the naked eye.

Not all germs are bad for us, but some kinds of bacteria and viruses can make us ill. So it is a good idea to get rid of any germs on your hand before every meal. After all who knows which germs on your hand are going to cause you to fall sick and which ones are harmless.

 Thanks to Glo Germ Gel we can now actually observe the germs on our hands using the ultra violet light pen. First apply the gel to your hands like you would use a hand lotion. Now darken the room and shine the ultra violet light pen on your hands to see where germs are concentrated on your hands.

Now go to the sink and wash your hands with soap and water nicely. Return to the dark room and shine the ulta violet light again. You will see that washing your hands has truly helped you get rid of a number of germs on them. Try out this science experiment with your friends for fun.

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Seed Dispersal Science Project

There are a number of ways that a seed can move away from its parent plant and put down roots to reproduce. One of the most common means of seed dispersal is blowing in the wind. Here in this science project we will investigate how the size and shape of a particular seed can help or hinder in wind dispersal.

Take a look at the different kinds of seeds you will need. Make sure there is enough variety such as a coconut, a dandellion seed, burdock seed, apple seed and mango seed will do fine. Each seed is of a different size and has specific characteristics. Now we need to decide which one is ideal for wind dispersion based on their size, mass and shape.

A coconut is obviously much too heavy for wind dispersion due to its heavy mass. A mango seed is also heavy and these two may be better suited for water or animal dispersal. With seeds of apple, burdock and dandellion which are all relatively light consider the texture of the seeds.

 The hook like burdock seeds are better suited to clinging to animal fur and being dispersed and the smooth apple seeds are more likely to be swallowed by the animals. Blow all the seeds away and you will realize that the fluffy dandellion seeds are more suitable to parachute down greater distances from the parent plant in the wind. make detailed observations to support your science projects.

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Seeds Galore

A little seed is a very important part of our lives. The potential plant lying dormant within the seed can produce food that will feed us enabling us to live. This biology based science experiment is simple and easy to follow. Just take a look at the various ways nature has provided plants to protect their seeds.

In this experiment here we are going to take a look at the different kinds of seeds that fruit plants produce. If we try and make a comprehensive study of all kinds of plant seeds the scope of the experiment will be way beyond your grade level. So pick between five to ten fruits that are commonly available to get started.

A few good ones are Apples, Peaches, Coconuts, Mangoes, Grapes, Oranges, Kiwis, etc. The things that are going to be observed and recorded in the project include the size of the fruit as compared to the size of the seed, the number of seeds per fruit and the protection provided by the fruit.

You can pick other factors if you want to make a more detailed science project out of it. You will need to physically examine each fruit and its seeds to record your observations. Make sure you take plenty of pictures to make it visually appealing.

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Depressing Sweet Drinks?

<p>It seems that your daily sweetened drink may have you at a higher risk for depression as per a recent scientific study. Dr Honglei Chen is the author of a new study conducted at the National Institutes of Health in Research Triangle Park in North Carolina. The study claims that adults who have sweetened beverages on a regular basis can be at an increased risk of triggering depression.<br />
As per Dr Chen sweetened beverages like coffee and tea may have important mental health consequences. The study was conducted on 263,925 people who were in the 50 to 71 age group. They were evaluated on their consumption of sweetened beverages like soda, fruit punch, tea and coffee over a period of ten years.<br />
At the end of the decade the participants of the study were asked if they had been diagnosed with depression. As per the records 11,311 participants out of the original 263,925 had been diagnosed with depression since the year 2000. While others might argue that such a portion of the participants being diagnosed with depression may have little to do with their beverage intake habits, the tentative link has been established.<br />
Sweetened beverages have had a full blown effect on obesity and weight gain in other scientific studies and this may be another ill effect that you may have to watch out for. The initial study does need to be followed up further before conclusive results can be announced. It may be healthier to take your beverages minus the sugar for the body and the mind in the future. </p>

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