Investigation 3

By Justin Grothe and Ben Johnson

Our Predictions

We predicted that the black water will heat up more than the blue water because the black water is a darker color than the blue water.

Tools We Need

  • Two plastic cups
  • Two plastic lids
  • Two thermometers
  • Black water
  • Blue water
  • A light source


Our Steps

  • Step 1: Fill both plastic cups with water.
  • Step 2: Add two to three drops of black and blue food coloring.
  • Step 3: Put the lids on the cups.
  • Step 4: Put both cups under the light.
  • Step 5: Record every five minutes.


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Correct Or Incorrect?

Our prediction was right! The black water was heated up more than the blue water. The temperature for the black water was 54°C, and the blue water was 52°C.


What We Learned

We learned that the black water will heat up more than the blue water because dark colors absorb heat faster than light colors.