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Which type of rock is almost damaged by freezing?

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by

Trinity Ware

on 18 November 2013

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Transcript of Which type of rock is almost damaged by freezing?

Which type of rock is almost damaged by freezing?

Background
A metamorphic rock is a rock formed by heat and pressure.
A sedimentary rock is a rock formed by sediment set over time.
A Igneous rock is a rock formed underground by magma or above ground by lava.
Hypothesis
If the metamorphic rock is frozen in water for 72 hours, then it will break apart or become damaged.
Question
Which type of rock is damaged by freezing? Sedimentary, Metamorphic, or Igneous rock?
Materials
Sedimentary rock (Sandstone or limestone)
Igneous rock (Granite or Pumice)
Metamorphic rock(Slate or marble)
3 water bottles
Scissors
Water
A Freezer
Procedures
Cut the center of the water bottle with scissors, and use the bottom half.
Label the water bottles that will match which type of rock will go inside.
Fill each with about 3/4 of water, or until the rocks are covered.
Put in freezer and freeze until the water becomes to ice.
Take it out and thaw the ice. Repeat steps 3-4,
if necessary.
Take the rocks out and see which is most damaged, then record your results.
Data Graph
Day 1/Damage
Day 2/Damage
Day 3/Damage
Sedimentary
No damage
Metamorphic
No damage
Igneous
No damage
Sedimentary
Losing color.

Metamorphic
No change

Igneous
Bigger dents
Sedimentary
No change
Metamorphic
No change
Igneous
Piece of the rock broke apart.
Trinity Ware
Greenbelt Middle School 8th Grade
Mod 1, Dr. Garcia

Conclusion
In my experiment, I discovered that my hypothesis was incorrect. My hypothesis asked ''If the metamorphic rock is frozen in water for 72 hours, then it will break apart or become damage''. My data showed that the igneous rock had the most damaged, since some of the rock broke off. The metamorphic did not. The Igneous rock I used was Pumice. The metamorphic rock I used was Slate, and Sedimentary rock I used was
Sandstone.
Acknowledgments
I would like to thank my science teacher, Dr. Garcia, my mom, and my best friend Lesly for helping me with my S.T.E.M Fair Project!
Full transcript