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Hooked on Science - Color Changing Strawberry Jam

hooked science 300KENTUCKY (6/14/15) — You are not going to believe what you can do with strawberry jam.  

Our “Science Guy” Jason Lindsey shows us an amazing science experiment that uses the same stuff you may spread on your toast.

INGREDIENTS

  • Strawberry Jam

  • Vinegar

  • Ammonia

  • Hot Water

  • Clear Plastic Cup

INSTRUCTIONS

  • STEP 1:  Fill the clear plastic cup three-fourths of the way with hot water.

  • STEP 2:  Add three tablespoons of strawberry jam to the hot water and mix.

  • STEP 3:  Add two teaspoons of ammonia to the clear plastic cup, mix, and observe.

  • STEP 4:  Add three teaspoons of vinegar to the clear plastic cup, mix, and observe.

EXPLANATION

The strawberry jam is a pH indicator, which is a substance that indicates the degree of acidity or basicity through a color change.  When the ammonia is added, the color changes to blue or purple, which indicates the ammonia is a base.  When the vinegar is added, the color changes to red, which indicates the vinegar is an acid.

Go to www.hookedonscience.org for more experiments that might get you and your family “Hooked on Science.”

Jason Lindsey Hooked on Science

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