Growing cristals



My Science fair is to see how long will it take for crystals to grow in hot temperature or cold temperature


My hypothesis is .. I think that the cold temperature one will grow faster because it's cold because everything freezes in the cold temperature.


  1. To start this science fair project, cut two pieces of yarn. Each piece should be approximately 1 inch longer than the height of the glass jars.
  2. Set one of the pieces of string aside and do nothing to it. Soak the other piece of string in a cup of water for 5 minutes.
  3. After soaking, use your hand to squeeze the excess water from the string. Roll the string in 1 tablespoon of sugar on a plate. The string will be coated with sugar. These small bits of sugar are the seeds on which other sugar crystals might grow.
  4. Lay both your seeded (sugar-coated) string and your non-seeded string on a piece of wax paper overnight. Make sure they are not touching.


The materials are







the Results are that the one in the room temperature grew faster than the one in the cold temperature.


My hypothesis was wrong because the one in the room tempter grew faster then the one in the cold water. If I could do this project again I would leave it for 2 more days to see if the one in the cold tempter grow faster.