A Cross Section of a Mad-Dawg Gumball Shows an Outer

question 44

Multiple Choice

A cross section of a Mad-Dawg gumball shows an outer layer of citric acid and malonic acid, beneath that a layer of food coloring, sugar, and flavoring, beneath that a layer of sodium bicarbonate (NaHCO₃) , and finally in the middle-gum! A 12-year-old puts one in his mouth and immediately puckers, smiles, and then foams at the mouth before chewing. Where did the foam come from?

• A) Twelve-year-olds naturally foam at the mouth.
• B) The sodium bicarbonate explodes when exposed to moisture.
• C) The acids react with the sodium bicarbonate, making unstable carbonic acid.
• D) The foam must have been packed in the gum somewhere.
• E) The acids react with the sugar, making a carbon volcano.

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Definitions:

Nationalized

The process by which private assets or industries are transferred to government ownership and control.

Conservationists

People or organizations that support the conservation and safeguarding of natural habitats and animal life.

Natural Resources

Materials or substances such as minerals, forests, water, and fertile land that occur in nature and can be used for economic gain.

Theodore Roosevelt

The 26th President of the United States (1901-1909), known for his energetic personality, range of interests and achievements, progressive reforms in business and labor, and vigorous foreign policy, including the Panama Canal construction.