Answer:

Independent Variable: Water Temperature

• Dependent Variable: Dissolving time of powdered juice
• Controlled Variable: Type and amount of powdered juice, stirring method, size of container

Hypothesis: Increasing the water temperature will decrease the dissolving time of powdered juice.

Procedures:

• Obtain powdered juice, a container, a thermometer, and a timer
• Measure the temperature of the water
• Measure the amount of powdered juice to be used
• Stir the powdered juice in the container with the water at a specific temperature and start the timer
• Record the time it takes for the powdered juice to fully dissolve
• Repeat the experiment at different water temperatures and record the results
• Analyze the data and compare the dissolving time at different water temperatures to determine if there is a correlation between water temperature and dissolving time.

Individually Variable: Variable that depends on

water temperature: Time it takes for powdered juice to dissolve

Controlled Variable: Type and quantity of powdered juice, method of stirring, and container size Powdered juice will dissolve faster if the temperature of the water is raised.

Procedures:

Gather powdered juice, a container, a thermometer, and a timer. Measure the temperature of the water. Measure the amount of powdered juice to be used. Stir the powdered juice in the container with the water at a certain temperature. Start the timer. Record the time it takes for the powdered juice to fully dissolve. Repeat the experiment at various water temperatures and record the results. Analyze the data and compare the dissolving time at various water temperatures to see if there is.