Materials: boiler plate, galvanized sheet metal, aluminized metal,copper, 4 cups the same size, a measuring cup that measures 1 cup, and lemon juice
Procedure:
1. Fill four cups with lemon juice
2. Put the metals in the lemon juice.
3. Put the cups in a safe place like a high shelf away from babies, dogs, etc.
4. Every week for 4 weeks check on the metals and record observations.
5. Now you know which metals "melt "the fastest.
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