Science experiments with your naked egg

In the last blog post we covered how to make a naked egg. Now we are going to turn the naked eggs you produced into a science project based on the principle of osmosis. Hopefully more than one of the six eggs you started out with survived the process and became a naked egg. If not, you can always do the experiment again.

To start this science project you need  a couple of naked eggs ready to use. You will also need separate containers for the eggs which can hold some liquid along with the eggs. You can  use coffee mugs for the purpose. Now take one shell-less naked egg and cover it with water. Take the other egg and cover it with corn syrup. Place the mugs into fridge for 24 hours.

When you take the eggs out of the corn syrup and water respectively you will find a difference between the two naked eggs. The egg that sat all day in water will be plump and firm, while the one which was in corn syrup will be shriveled and flabby. Why did this happen? The eggs in question have a semi permeable membrane, which means that small molecules can go through the membrane and large ones can not.

The egg white in the naked egg is 90% water and so when the egg is kept in water nothing much happens to it. However the corn syrup is just 25 per cent water and has large molecules which can not move past the egg membrane. So to balance out the different concentrations of water in the solution the water inside the egg white moves out making the egg shrivel. Get more experiments here.

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How make a naked egg

What does one mean by a naked egg? An egg without a shell. It would make for an interesting science project to make a naked egg. And no its not as simple as hard boiling the egg and peeling off the shell. What we are going to do is actually dissolve the shell that surrounds the egg so that you get a translucent egg.  Sounds exciting? So lets get started.

Take about six eggs to start with. Now place them in a container large enough to keep the eggs with them touching each other. Cover the eggs with vinegar. You will see some bubbles coming up. Now cover the container and place it in the fridge for 24 hours.  After that when you open the container you will see the shells have gone.

The egg membrane is the only thing that keeps them together. Scoop out the eggs with a large spoon and place in another container gently. The reason we took six eggs is that during this process some of the egg membranes may break and the egg may ooze out. You can throw away these eggs.

Now cover the remaining eggs with some fresh vinegar and again put it into the fridge for 24 hours. At the end of which time you will be able to gentle hold the egg without a shell in your hands and squeeze it. Check out more exciting science  experiments here.

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Spin the Egg

The science project titled checking the inertia of an egg can actually be turned into a quick party game. Place a few raw eggs along with one hard boiled one in a plate. Now ask your friends to point out to the hard boiled one. The eggs should all be at room temperature otherwise the hard boiled one will be too easy to spot.

Any way, once they have failed to identify the hardboiled egg, all you need to do is spin the eggs gently in the plate. The ones that are not boiled will be wobbly while spinning. The hard boiled egg will spin smoothly because the liquid inside the egg is all solidified.

This happens because the inertia of the liquid is missing in the hard boiled egg. Party game plus science lesson rolled into one. You can also use different party games which include science principles. Believe it or not spin the bottle also uses the inertia of the bottle to stop.

If you are looking for more fun science experiments to do you can head over to solve the mystery of the soda can collapsing here. There is just science and no magic to all these funny and weird happenings. Check it out when you have some time.

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Make a coin vibrate without touching it

Part of the magic of doing science projects is the fun experiments that you get to conduct along the way. For instance if you told a person that you would make a coin vibrate without touching it, most would think you are setting out to perform a magic trick. Not true, all you would be doing is putting good use to the science principles you know.

Most of the tricks that are performed by magicians on stage are actually just a tribute to science and some fancy hand work. The hand moves faster than the eye can see after some practice and it becomes magic. That is why magicians never tell their secrets. It would kill the MAGIC!

For those of you still curious about how to make that coin vibrate, here’s the deal. You get a glass bottle and a coin which will cover the opening completely. Now place the bottle in the fridge and chill it. Take out the empty and by now cold bottle and place the coin on top of its opening.

Now place the bottle on a table with the coin on top. Hold the bottle with both hands and wait for the bottle to warm up. Soon you will see the coin begin to vibrate. Why does it happen? You heated the air inside the bottle with your hands. The air expanded and tried to escape from the mouth of the bottle! Get more Air Pressure Experiments here.

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Light and Dark

A laser is an interesting instrument. It allows you to study the nature of light and darkness. You can see what makes up a single stream of focused light if you know just how to split it up.

The word “LASER” stands for Light Amplification by Stimulated Emission of Radiation. Which means that it is essentially a constant stream of photons are emitted from a light source. A single beam allows the light to be focused on any point in the room that you desire.

This is what is also used as a pointer in presentations where the slide is reflected on a screen and the speaker needs to pin point a specific part. It can be a fun toy to play with. It can also be a good tool to learn more about the nature of light.

For experiments related to the use of lasers take a look at this article here. There are simple science experiments for you to perform which you will enjoy. And if you have access to a fog machine it will really look awesome.

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Chemistry in the Kitchen

Did you ever laugh at the Chemistry lab being blown up by Archie? Did you sympathize with Professor Flutesnoot? Did you ever think that you could do the same science experiments in your kitchen?

Now hold on and pay attention. I don’t want you to go blowing up the kitchen at home and saying it was my idea. However I do want you to understand that you can do a whole lot of chemical reactions in the kitchen.

Think of the kitchen as a place where you have acids available to you without adult supervision. Citric acid for instance, is present in the lemon you cut to make your lemonade. Add rock salt and the lemonade turns pink because of the chemical reaction that takes place.

Another highly reactive substance lying around in a kitchen is Baking Soda. You mom makes use of it to make the cakes she bakes light and fluffy. Ever wonder about the chemical reaction behind that which helps trap air in the cake batter?

If you are looking for a safe and easy experiment to do in your kitchen check out this article here. It may prove that you have some kitchen wizard skills. Cook up a magical batch of science experiments as you understand the chemistry behind it. Have fun!

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Working models and games

Imagine interesting science projects that actually are fun to play with. Making sparks fly from the ends of swords or getting a gentle fog to descend on the room. These are not so difficult to do when you know the science behind them. And they can become a part of your science fair project with ease.

Simple but working science projects that actually do something are always more interesting than detailed models that do nothing. That is why even something as simple as a parachute dropping an egg from a height is much more interesting than charts and reports.

So the minute you add motion to the project it captures the attention of the viewers. If you add an interactive element it will become even more popular. That is why the games at a fair are more popular than the displays. Ever notice that they have the largest crowds?

They are also more likely to catch the attention of the judges. So put on your thinking cap and come up with interesting games and working models that use science principles. Check out the Fun Aero plane that you can make here. It would be fun to fly this at the science fair.

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Does the amount of light received affect the plant’s growth?

For a plant to grow healthy and strong it needs light, water, and fertile soil to grow in, but what happens of the light it gets is not enough? Is there an optimum level of light that the plant must have to grow well? In this science experiment we are going to use three plants of the same kind and roughly of the same size to check this fact out.

Does the plant that gets less light grow more or less than the one which gets a whole lot more light? To make the experiment easier to control we will use just artificial light on all three plants. We will set the three plants in cubicles in similar pots, but we will vary the quality of light that each plant will receive. To do so we will use a 25 watt bulb, a 100 watt bulb and a 200 watt bulb.

Now make a record chart for your observations of each plant. Make sure that the lights are far enough from the plants so that the heat generated from them does not damage the plants. Observe the condition of the plants over a period of 10 days on a daily basis. At the end of ten days which plant is looking the healthiest? Look out for more science experiments here.

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Science Experiments in the kitchen

Who said that science experiments had to be done in labs? You can have your own set of experiments in the kitchen. I know that I can cook potatoes faster if I mix them with some aborigines. I don’t know why, but something about the two vegetables being cooked together tends to speed up the cooking time needed.

Here are a few ideas that you can try out.  Does adding salt to water make it boil faster than the plain water? Try boiling water in two pans and add a spoonful of salt to one of them. Now time them both as the water comes to a boil and check which one boiled faster.

You can even use some fruit in the kitchen to generate electricity. Get some alligator clips and hook them up to copper and zinc electrodes. Add a miniature light bulb to complete the circuit and you will have a bright science project. Use different types of citrus fruits to see which ones generate the power longest.

There is no dearth of experiments for you to perform in the kitchen. And why restrict yourself to science experiments in the kitchen alone? You can get any number of fun projects to do here. Check them out and get started right away.

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Finding the time for making your Science Fair Project

Making a science fair project is more than just putting up any old thing as your entry to the science fair. It involves learning something new and then putting it to practical use. There is a whole lot of work involved if you choose to do it properly and well.

Picking the right idea for your project can make a huge difference to the way you handle your project. If it is something that interests you then you will be willing to work on it at the cost of your social time and despite school work.

Yes the science project will make demands on your time, but if you organize yourself well, you will be able to generate more than enough time to get the project done well. To do this, you will have to ensure that you don’t leave everything to the last minute.

A little bit of work done every day is much better than trying to produce a science project overnight the day before the science fair. Read here about the four secrets to success at the science fair. May be they will inspire you to do your best.

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