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By Cara Sommerville, Nate Stanlake and

Zoe Hawkins- Grade 4 LaRocca

How does food coloring affect different liquids?And how long does it take?

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Project Purpose:

How long does it take for food coloring to color different liquids?

Process:

We dipped a toothpick in liquid food coloring (not gel) and placed it in different liquids (all 1 cup) and timed how long it took for the color to solidify. The liquids we tested on were:

  • Buttermilk
  • Grape juice
  • Water
  • 2% reduced fat milk
  • Sprite
  • Schweppes
  • Corn Syrup

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Hypothesis

We thought that the Schweppes Ginger Ale would take approximately 1:30 minutes, the Sprite 3:00 and the Water 1:00 to turn completely blue. We also thought that the milk 3:00, the White Grape Juice 5:45, Buttermilk 30:00, Skim milk 4:30 and Corn Syrup 20:00.

Materials

  • All the liquids (see previous slide)
  • Toothpicks
  • Measuring cup
  • Stopwatch
  • Blue/Purple food coloring

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Photos- Part I

Water After

Water

Before

Milk

Before

​

Milk

After

Sprite Before

Sprite After

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Photos- Part II

Schweppes Before

Grape Juice

After

Schweppes After

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Grape Juice

Before

Grape Juice DURING

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Photos- Part III

Skim Milk Before

Corn Syrup

After Days

Buttermilk

Before

Skim Milk After

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Corn Syrup

Before

Buttermilk After Days

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Results

Liquid

Time

Water

16 mins

Schweppes

21 mins

Sprite

24 mins & 45 seconds

Skim Milk

27 mins

2% Reduced Fat Milk

30 mins

Grape juice

1 day 3 hours

Corn Syrup

1 day & 7 hours

Buttermilk

2 days 6 hours and 47 minutes

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Conclusion

We found out that the thin liquids out of the liquids we tested were:

Water, Sprite, Schweppes and 2% reduced fat milk, which all took less than a day.

The thicker liquids of the ones we tested were:

Buttermilk, Corn Syrup and Grape Juice, which all took over a day.

That means that the thicker the liquid, the longer it takes the food coloring to solidify.

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Thank you for looking at our science project!