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S.T.E.M. F air 2 013-2014

S.T.E.M. F air 2 013-2014. Question. Can salt melt ice faster than the sun?. Purpose. The purpose of my investigation is to determine if salt can melt ice better than the sun itself. Hypothesis.

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S.T.E.M. F air 2 013-2014

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  1. S.T.E.M. Fair 2013-2014

  2. Question • Can salt melt ice faster than the sun?

  3. Purpose The purpose of my investigation is to determine if salt canmelt ice better thanthe sun itself.

  4. Hypothesis I hypothesize that sunlight melts ice better than salt. I believe this because I used my schema to know that the sun probably will melt it better because the suns rays have warmth.

  5. Procedure

  6. Materials • Two paper plates • Ten ice cubes • Timer/Stopwatch • Marker • Tape/masking tape • Sunlight • Grams of salt

  7. Variables • Manipulated: Sun or salt • Responding: melting time • Constants: paper plates, ice from local store, amount of salt used

  8. Directions • Gather materials • Place one ice cube on the paper plate labeled SUN • Place one cube on the plate labeled SALT • Sprinkle grams of salt on the ice cube on the SALT plate • Start timer • Record melting time for each cube • Repeat steps 1 through 6 for four more trials

  9. Data Chart

  10. Graph

  11. Conclusion • MY HYPOTHSISE WAS INCORRECT. SALT CAN MELT ICE FASTER.

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