Science Fair Project:

Which Type Of Rocks Are Most Damaged By Freezing?

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Materials:

  • Sedimentary rocks (such as sandstone or limestone)
  • Igneous rocks (such as granite or pumice)
  • Metamorphic rocks (such as slate or marble)
  • Several water bottles (each to hold each type of rock in one container)
  • Water
  • Freezer

Procedure

  1. Take your rocks and put each kind in a separate water bottle.
  2. Fill each with the same amount of water. Cover all the rocks. Label all the bottles.
  3. Put into the freezer and freeze until the water becomes ice.
  4. Take it out and thaw the ice.
  5. Repeat steps 3-4 for about 3-5 more times for each bottle.
  6. Take the rocks out and observe which kind looks the most damaged.
  7. Record your results.
Author: Jennifer Penn-Chiu
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