Materials+and+Procedure

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Materials
-Dry Ice (pellet form or block) -99% isopropyl rubbing alcohol -2L pop bottle -smaller (591mL) pop bottle -things to freeze

Procedure
1. Cut tops off both bottles 2. Cut holes in bottom of smaller bottle 3. Cut small (1/2") chunks of dry ice, or use pellet variety of dry ice 4. Pack dry ice inside larger bottle but outside the smaller bottle, about 3"-4" deep 5. Pour alcohol on dry ice about 2" deep, wait until it finishes boiling 6. Freeze thin objects and shatter them to prove the liquid is extremely cold (about -80°C)