CHEMICAL REACTIONS

LAB:  ROCK CANDY MAKING

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Chemical Reaction and Physical Reaction

1. Purpose- To observe physical change and a chemical reaction

2. Materials- 1 ½ cups cane sugar         ½ water

              glass jar                              pencil

                     food coloring             string

3. Procedure-

Step 1: Combine your ingredients

Pour 1 ½ cups of cane sugar into a glass beaker.

Step 2: Add ½ cup of water to the sugar.

Step 2: Heat and stir solution

Microwave on high for 2 minutes.

Stir the solution.

Microwave the stirred solution for 2 minutes on high.

Add 5 drops of food coloring of your choices.

Step 3: Prepare the String

Cut the string so it is only about ⅔ of an inch shorter than the container.

Take a clean string and tie it around the pencil.

Step 4: Starting the process

Lower the string into the solution and have the pencil sit on the lid.

Let the string sit in the solution for 5 minutes.

Take out the string and let it completely dry on a piece of wax paper.

Allow the solution to cool to room temp.

Step 5: Wait for your rock Candy

Slowly lower the string into the solution.

Let it sit in the solution for about a week.

When your ready lift the pencil and take out your rock candy.

4. Conclusion-

Draw and describe the rock candy process

Explain the chemical reaction and physical change