Determine the aim of this investigation. Formulate an investigative question for this investigation. Write down the hypothesis of this investigation. Identify the independent variable, dependent variable, controlled variable.

Here are the answers to your questions:

1. Determine the aim of this investigation. The aim of this investigation is to determine whether various household substances are acidic, basic, or neutral using universal indicator and red cabbage water.

2. Formulate an investigative question for this investigation. How do different household substances vary in their acidity, basicity, or neutrality when tested with universal indicator and red cabbage water?

3. Write down the hypothesis of this investigation. If different household substances are tested with universal indicator and red cabbage water, then they will show varying pH levels (acidic, neutral, or basic), resulting in different color changes with the indicators.

4. Identify the

   • 4.1 Independent variable. The type of household substance being tested.
   • 4.2 Dependent variable. The pH (acidity, basicity, or neutrality) of the substances, indicated by the color change of the universal indicator and red cabbage water.
   • 4.3 Controlled variable. The volume of indicator added to each substance.