Question

• a bag of white sugar
• a bag of brown sugar
• warm water
• cold water
• a stopwatch

using only these supplies, which questions can jacob investigate with an experiment? select all that apply.
☑️ does white sugar dissolve more quickly in warm water or in cold water?
☑️ does white sugar dissolve in warm water more quickly than brown sugar does?
☑️ does white sugar dissolve more quickly in warm water or in warm coffee?
☑️ does brown sugar dissolve in water more quickly than powdered sugar does?

Explanation:

1. For "Does white sugar dissolve more quickly in warm water or in cold water?": Supplies include white sugar, warm water, cold water, and a stopwatch. We can test by dissolving white sugar in both and timing, so it's investigable.
2. For "Does white sugar dissolve in warm water more quickly than brown sugar does?": Supplies have white sugar, brown sugar, warm water, and a stopwatch. We can dissolve each in warm water and time, so it's investigable.
3. For "Does white sugar dissolve more quickly in warm water or in warm coffee?": Supplies don't include coffee, so we can't test this.
4. For "Does brown sugar dissolve in water more quickly than powdered sugar does?": Supplies don't include powdered sugar, so we can't test this.

Answer:

A. Does white sugar dissolve more quickly in warm water or in cold water?
B. Does white sugar dissolve in warm water more quickly than brown sugar does?