Acid Vs. CaffeineAcid Vs. Caffeine

By Raylene Myers

MaterialsMaterials

• pH Strips (at least 4)• Monster Energy

Drink• Lime Juice• Pepsi• Hydrochloric Acid• Clock

• 4 Bowls• Gram Scale• 12 Coffee Filters• 12 Eggs• Pin• Measuring Cup

ProcedureProcedure

1. Set Up (See Diagram)2. Weigh eggs after they are blown out and record weight and

description in the two tables3. Measure substances using pH strips, measure out one cup and pour

into clear cups and/or glasses 4. Put eggs in substances, come back seven hours later and take eggs

out, put in coffee filters5. Weigh each egg in a coffee filter on the scale,average if needed6. Record egg descriptions 7. Dump substances and repeat steps 1-7 two more times for trials 2

and 3

8. Safety: Don’t get substances on open cuts

ProblemProblem

How does soaking eggshells for 7 hours in caffeine and acidic pH content substances affect an eggshell?

HypothesisHypothesis

As I soak the eggshells in different substance of Acidic and Caffeine pH content for seven hours then the lime will dissolve the eggshell most because lime is the most acidic.

VariablesVariables

• Manipulated Variable:• Controlled Variables: 12 Eggs,

Cups, Pin, Amount of Substances• Responding Variable: Eggshell

weight and description

Trial 1Egg Weight

Egg 1 Egg 2 Egg 3

Monster

Hydrochloric Acid

Lime

Pepsi

Trial 2Egg Weight

Egg 1 Egg 2 Egg 3

Monster

Hydrochloric Acid

Lime

Pepsi

Trial 3Egg Weight

Egg 1 Egg 2 Egg 3

Monster

Hydrochloric Acid

Lime

Pepsi

Trial 1Egg DescriptionEgg 1 Egg 2 Egg 3

Monster

HydrochloricAcid

Lime

Pepsi

Trial 2Egg DescriptionEgg 1 Egg 2 Egg 3

Monster

HydrochloricAcid

Lime

Pepsi

Trial 3Egg DescriptionEgg 1 Egg 2 Egg 3

Monster

HydrochloricAcid

Lime

Pepsi

Acid Vs. Caffeine

4th Period ScienceMr. LeingangRoom 1808