Posted on April 28, 2010.
Science Fair Project High School School Project Fair
Here is a great science fair project for high school than you probably think is too immature for a high school student. However, this is exactly what you can do, especially for the chemistry class.
You will prepare a mixture that will react chmical and modify the physical properties temporarily. This study will make components for some time.
You make a product that I call the liquid clay because when you mix and before you pick it is in liquid form, but once in your hands and you start playing with the composite will be very firm.
Here your goal: You want to compare and contract two ingredients that you mix. They are the glue and liquid starch.
When you mix these two issues at the same time you must make visual attention and the feel for the changes that occur. Before you give the exact recipe you need to make your hypothesis about what will happen in the spray when you play with your hands, what happens when you let it rest. What happens if you do not put it in a closed container.
This is where your chemistry comes to play.
starch or liquid starch usually made from glucose. Glucose is a sugar (a simple sugar).
The glue is composed mainly of protein.
Think about the molecular structure of these two substances.
When you mix the two together of these there is a link formed by these two substances and changes in physical properties of these two substances creates a relatively new substance.
Recipe for playdough liquid starch, liquid, household glue, a large plastic tub to mix the ingredients. I usually use a cool guy whip old packaging.
Put about 1 / 2 cup of glue into the plastic bowl. Now, measure 1 / 2 cup of liquid starch. Watch these two substances and take notes on what they look like, cloudy, clear, see through, the thickness of the liquid.
Pour the cornstarch into the bowl with glue and your hands to mix the two ingredients to make you feel what is happening is that the two are combined. As you mix, you should get a product a little sticky, but still firm. If it is too runny add glue.
If it is too stiff add a little more starch.
Once it has formed a solid enough training to keep the new combination in your hand and put it under running water to wash the excess starch and glue.
Press the mixture between your fingers to see what happens when you constantly play with him. Now, let sit and just hold in the palm of your hand. What happens to the mix?
Roll-on course until it becomes firm and try to bounce on the ground? What happened? Record your results.
Try to stretch and see how far and long term, you can stretch before tears. What happens? Record your results.
Now, put most of the new combo in a plastic bag while leaving a small piece in the open air to dry.
It may take more than a day, but when it was dry so you can see the mixture back to life.
Now, put a small piece in a bag and put it in the freezer. What happened to him when you blink? Try to defrost it and see if the mixture is the same.
What is that smell, what color it was and what form does it become? Record your results.
Look for more science projects school just to http://scienceprojects.fetching.us
