When you are noticing and describing something you see, you are making an 2. When you make a prediction based off what you know and your experience, you are making an: When you make a prediction based off what you know and your experience, you are making an 3. When you come up with a possible explanation that can be tested you are coming up with a: When you come up with a possible explanation that can be tested you are coming up with a 4. An experiment in which only ONE variable is changed: An experiment in which only ONE variable is changed 5. In a controlled experiment this is changed; it's also called the manipulated variable: In a controlled experiment this is changed; it's also called the manipulated variable 6. The variable that changes in response to the independent variable: The variable that changes in response to the independent variable