Crystals can be grown in a rainbow of colors.
Crystal formation is a naturally occurring and fascinating process that children will love to see in action. You can demonstrate how crystals form by carrying out an experiment that extracts and crystallizes minerals from a solution. You can even make this crystal-growing experiment more exciting by turning the crystals into a rainbow spectrum of colors. Everything needed to create a crystal-growing experiment can be found around your kitchen.
Instructions
1. Pour 2 cups of water into a pot and heat the water until it boils.
2. Pour 3 cups of salt into the water, stirring it thoroughly. Pour the salt solution evenly into five baby food jars.
3. Add five drops of food coloring to each jar. Use a different color for each jar. Mix the solutions thoroughly.
4. Tie five pieces of twine, each around 7 inches long, onto a pencil. Space the pieces of twine out evenly on the pencil. Turn a glass tumbler upside down and then place the pencil horizontally on the tumbler. Tape the pencil to the tumbler with masking tape.
5. Arrange the baby food jars evenly around the glass tumbler. Place each end of twine into a baby food jar, one piece for each jar. Leave the jars and twine alone for at least one week. The colorful crystals will grow up the pieces of twine.
Tags: baby food, pieces twine, baby food jars, crystal-growing experiment, food jars, glass tumbler