Remove the chicken bone from the cup. What has happened to the strength of the bone after letting it sit in vinegar for 72 hours? Of the two substances you identified in review questions 3 and 4, which do you think dissolved in the vinegar? What substance is left over then?
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Sri K.
What protein fiber is flexible and makes up a major portion of bone? Use this spot to include pictures of your two dissected chicken wings from step 19. Application Questions: 1. Place the following layers in order from most superficial to deep: - Deep Fascia - Epidermis - Dermis - Superficial fascia - Bone - Muscle 2. Remove the chicken bone from the cup. What has happened to the strength of the bone after letting it sit in vinegar for 72 hours? Of the two substances you identified in review questions 2 and 3, which do you think dissolved in the vinegar? What substance is left over then? 3. What does the above tell you about how the bone needs to balance and the role of these two substances? 4. Teeth are also composed of the substance you identified in review question 2. What do acidic substances such as sodas do to your teeth then? Use this spot to include a picture of the bone that was dissolved in vinegar from step 24.
Adi S.
Do the activities: follow the directions in the video, take before and after photos of your eggs with you in the photo, and answer the following questions: (Links to an external site.) When you first cover your egg with vinegar, what are the bubbles on the shell's surface? What evidence is there of a chemical change? What reaction is involved in making the shell dissolve? What is keeping the egg contents from spilling out? Is there a difference between the size of the egg at the beginning and at the end of the experiment? What has caused this change? Why is your naked egg that was soaked in vinegar bigger than a shelled egg? Why does an egg in corn syrup change shape and weight? Remember, corn syrup is a solution with water as the solvent and a high concentration of sugar (the solute). Does the egg soaked in water change shape and weight? What could you do to return the egg to its original form? If you have the following, compare the effects of vinegar, plain water, cola, and orange juice on the eggshell. What do the liquids have in common? How do they differ?
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