High School Science Fair Project
Monday, July 12th, 2010Science Fair Project High School
Here is a great project for high school science fair, you probably think is too immature for a high school student. But this is exactly what you can do, especially for chemistry class.
You will be a mixture that will react chmical, and modify the physical properties of prepared this time. It will examine the ingredients for some time.
You get a product that I call the play dough, because if you mix and shovel before doing so, it is in liquid form, but once in your hands and you start playing with him, the composite became very strong.
Here your objective: To compare and contract two ingredients that you mix. They are the glue and liquid starch.
When you mix these two elements must look together visually with touch and feel the changes that may occur. Before you give the exact recipe you need to make your assumption about what the spray occur when you play in your hands, what happens if you let it rest. What happens if you do not put it in a closed container.
This is where your in the chemical industry in the game
liquid starch or starch in the State of glucose. Glucose is a sugar (a simple sugar).
The adhesive is mainly composed of proteins.
Think about the molecular structure of both substances.
If you have made this mix the two, there is a link with these two substances, and changes the physical properties of these two substances to create a little new substance.
recipe for salt dough liquid mixture: liquid starch, glue, household, a large plastic tub ingredients. I usually use an old type of container Cool Whip.
Apply glue in the plastic cup 2:01 bowl. Now, out of the measuring cup liquid starch 2:01. Discover these two substances and take notes of what they want, cloudy, clear eyes see through the thickness of the liquid.
Pour the cornstarch into the bowl with glue and your hand to the two ingredients together, so you can experience what happens when the two combine. How do you mix a little sticky, but still maintain solid products. If it is too runny add glue.
If it drops a little more strength.
If anything keep training the new combination formed the firm hand and put it under running water to wash the excess starch and gluten.
Press to see the mixture between your fingers, what happens when you play with him constantly. Now, let rest and only stop in the palm. What happens to the mix?
Roll on course until it is fixed, and try to bounce on the floor? What happened? Record your results.
Try to stretch and see how far and long term can be stretched before tears. What happens? Record your results.
Now, most new combo in a plastic bag, but a small piece in the open air to dry.
Maybe more than one day, but if it was to see if you can come back to life with the dry mixture.
Now, place a small piece in a bag and put it in the freezer. What happens when it freezes? Try to defrost it and see if the mixture is the same.
What is that smell, what color it was and what form it left on? Record your results.
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