Question

mona is activating yeast for her bread recipe. she notices that as the yeast activates, it releases bubbles of carbon dioxide. she wonders what factors affect how much carbon dioxide her yeast releases. she has the following supplies available: one jar of yeast, 90°f water, 110°f water, 1 teaspoon of sugar, 1 teaspoon of salt. using only these supplies, which questions can mona investigate with an experiment? select all that apply. does yeast release more carbon dioxide when mixed with 90°f water or when mixed with 110°f water? does yeast release more carbon dioxide when mixed with 110°f water and 1 teaspoon of sugar or when mixed with 110°f water and 1 teaspoon of salt? does yeast release more carbon dioxide when mixed with 110°f water and 1 teaspoon of sugar or when mixed with 110°f water and no sugar? does yeast release more carbon dioxide when mixed with 90°f water and 1 teaspoon of sugar or when mixed with 90°f water and 1 teaspoon of salt?

Explanation:

Mona has yeast, water at two different temperatures, sugar, and salt. She can conduct experiments to compare the amount of carbon - dioxide released under different combinations of these substances. Each option presents a comparison that can be tested with the available supplies.

Answer:

Does yeast release more carbon dioxide when mixed with 90°F water or when mixed with 110°F water?
Does yeast release more carbon dioxide when mixed with 110°F water and 1 teaspoon of sugar or when mixed with 110°F water and 1 teaspoon of salt?
Does yeast release more carbon dioxide when mixed with 110°F water and 1 teaspoon of sugar or when mixed with 110°F water and no sugar?
Does yeast release more carbon dioxide when mixed with 90°F water and 1 teaspoon of sugar or when mixed with 90°F water and 1 teaspoon of salt?