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QUESTION

HYPOTHESIS

• If multiple string sizes are tested then the shorter strings will collect less sugar crystals and the longer strings will obtain more sugar crystals.
• What's your hypothesis?

Background Knowlege
I know that no crystal is like the other, they are all different one does not resemble the next. I also know that sugar crystals are an organized grouping of molecules and atoms. Sugar crystals are also long and slanted at the ends.

MATERIALS NEEDED

• – table sugar – tap water – cooking pot – red food coloring – spoon – paper towels – jar – string – lifesaver candy – pencil
• Those are all materials needed

PROCEDURE PT 1.

• Procedure: Step 1. Place 3 cups of table sugar and 1 cup of tap water in a cooking pot. Step 2. Heat the mixture to boiling, stirring constantly. As soon as the mixture boils, all of the sugar should have dissolved and the solution is clear with a straw color. Remove the pot from the heat. Step 3. Add 10 drops of red food coloring. Stir the solution so that it is thoroughly colored. Step 4. Cover the pot with a paper towel and allow the pot to sit at room temperature for 10 minutes. Step 5. Prepare the growing jar. Thoroughly clean a see-through slender glass jar that is at least six inches tall with a diameter of at least 3 inches. Step 6. Prepare the growing string. (Parts below) (1.) Cut a cotton string at least 3 inches longer than the height of the growing jar (2.) Tie a Lifesaver candy to one end of the string. The candy serves as a weight to keep the string vertical. (3.) Drop the candy-end of the string into the growing jar. The string is to be vertical in the jar. (4.) Raise the string so that the candy is suspended 2 inches from the bottom of the jar. Tie the free end of the string to a pencil and place the pencil across the mouth of the growing jar. Note: You want the string to be suspended vertically in the center of the jar with the candy end about 2 inches from the bottom of the jar. (5) Seed the string by dipping the string into the sugar solution, and then sprinkle dry table sugar along the sticky string. (6) Hang the seeded string vertically in the jar, and then cover the jar with a paper towel while the sugar solution continues to cool. – Step 6. Place the paper covered pot containing the sugar solution in the refrigerator for 10 minutes. You want the liquid to be cooler than room temperature. Step 7. After the solution has cooled in the refrigerator, raise the seeded string from the jar, pour the solution into the jar, and then lower the string so that it hangs in the center of the jar. Step 9. Observe the growth of the sugar crystals for 7 days.

PROCEDURE PT 2.

• Step 4. Cover the pot with a paper towel and allow the pot to sit at room temperature for 10 minutes. Step 5. Prepare the growing jar. Thoroughly clean a see-through slender glass jar that is at least six inches tall with a diameter of at least 3 inches. Step 6. Prepare the growing string. (Parts below) (1.) Cut a cotton string at least 3 inches longer than the height of the growing jar

PROCEDURE PT 3.

• (2.) Tie a Lifesaver candy to one end of the string. The candy serves as a weight to keep the string vertical. (3.) Drop the candy-end of the string into the growing jar. The string is to be vertical in the jar. (4.) Raise the string so that the candy is suspended 2 inches from the bottom of the jar. Tie the free end of the string to a pencil and place the pencil across the mouth of the growing jar. Note: You want the string to be suspended vertically in the center of the jar with the candy end about 2 inches from the bottom of the jar. (5) Seed the string by dipping the string into the sugar solution, and then sprinkle dry table sugar along the sticky string. (6) Hang the seeded string vertically in the jar, and then cover the jar with a paper towel while the sugar solution continues to cool. – Step 6. Place the paper covered pot containing the sugar solution in the refrigerator for 10 minutes. You want the liquid to be cooler than room temperature. Step 7. After the solution has cooled in the refrigerator, raise the seeded string from the jar, pour the solution into the jar, and then lower the string so that it hangs in the center of the jar. Step 9. Observe the growth of the sugar crystals for 7 days.

PROCEDURE PT 3

• Note: You want the string to be suspended vertically in the center of the jar with the candy end about 2 inches from the bottom of the jar. (5) Seed the string by dipping the string into the sugar solution, and then sprinkle dry table sugar along the sticky string. (6) Hang the seeded string vertically in the jar, and then cover the jar with a paper towel while the sugar solution continues to cool. – Step 6. Place the paper covered pot containing the sugar solution in the refrigerator for 10 minutes. You want the liquid to be cooler than room temperature. Step 7. After the solution has cooled in the refrigerator, raise the seeded string from the jar, pour the solution into the jar, and then lower the string so that it hangs in the center of the jar. Step 9. Observe the growth of the sugar crystals for 7 days

PROCEDURE PT 4

• Step 6. Place the paper covered pot containing the sugar solution in the refrigerator for 10 minutes. You want the liquid to be cooler than room temperature. Step 7. After the solution has cooled in the refrigerator, raise the seeded string from the jar, pour the solution into the jar, and then lower the string so that it hangs in the center of the jar. Step 9. Observe the growth of the sugar crystals for 7 days

STING SIZES (BTM) GRAMS OF CANDY ROUNDED (SIDE) WEIGHT OF CANDY (TOP)

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THE END RESULT

Conclusion: For my independent science project I tested to see how the length of a string would affect sugar crystals collected when you're making rock candy. My hypothesis turned out to be correct after preforming the experiment. From the data I collected and shown in my bar graph, the shorter strings (8 inches, 7 inches, and 6 inches) did collect less crystals because the rock candy that used the eight inch string only weighed 16 grams, the 7 inch was 15 grams, and the 6 inch was 10 grams. An error that could have been made was weighing it incorrectly. In conclusion I learned many new things from this experiment and I got yummy candy out of it.

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