My topic that I am presenting at KIC is dissolving substances. My partners are Courtney and Maddy. We chose this topic because we do not know a lot about dissolving substances and we wanted to learn about them.
The question that I wanted to investigate is, “When comparing peanut butter with marshmallow cream which will stay longer (not dissolve) under which liquids?” That way that we thought of the question was first by picking the topic. The way that we picked our topic was by thinking about something that we did not know about. After thinking we came up with dissolving substances. Next I knew that we needed some variables to use. After thinking about variables that could stick under liquids I came up with using peanut butter and marshmallow cream. So my hypothesis is which substance (peanut butter or marshmallow cream) will dissolve last under which liquids.
Water is good for dissolving many substances. Cocoa, salt, and sugar dissolve easily in water. These can also be dissolved in oil, milk, and other liquids. Soap also dissolves in water. Now, that’s good for washing things and blowing bubbles. Turpentine is another good dissolver. Paint dissolves in turpentine. Turpentine is poisonous. Turpentine is also good for cleaning paintbrushes and fingers with paint on them. When things dissolve they spread out evenly all through the liquid. When a liquid can’t dissolve something, they separate from the liquid. This is just some information on dissolving substances.
To answer my question I did many things. First I put peanut butter in water. Then I put peanut butter in warm water. Next I put peanut butter in Kool-aid, and then in vinegar. Later I put marshmallow cream in water, then warm water. Then I put marshmallow cream in kool-aid. I finally put marshmallow cream in vinegar. During all this we recorded times and temperatures. These were all the steps that we did to answer our question.
I discovered many things with my partners. Some things are that peanut butter sticks longer under water. Peanut butter stuck underwater for 16 minutes and 4 seconds. Peanut butter sticks better under hot water better than marshmallow cream. Peanut butter stuck under hot water for 2 minutes and 27 seconds. Peanut butter sticks under vinegar longer than marshmallow cream. Peanut butter stuck under vinegar for 13 minutes and 52 seconds. Peanut butter sticks longer under Kool-aid longer than marshmallow cream. It stuck for 4 minutes 8 seconds. Peanut butter sticks longer under water than anything. It stuck for 16 minute and 4 seconds. Peanut butter stuck the least under warm water. It stuck for 2 minutes and 27 seconds. Marshmallow cream stuck under vinegar the longest. It stuck for 6 minutes 18 seconds. Marshmallow cream stuck the least under water. It stuck for 54 seconds. These are facts that I learned about dissolving substances.
If you seem interested in dissolving substances then you might try some things that I suggest. Next year students might want to use different sticky substances like butter or candy. They also might want to use different liquids. Also they might want to use a bigger or smaller amount of liquids and/or substances. Also students might want to have their question opposite of mine. An example might be which stuck the least. Also they might use which substance floats to the top. These are some things that students might want to try next year.
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