Question

1. what effect does studying with music have on student test scores? hypothesis: independent variable: dependent variable: 3. what effect does food color have on the amount of food fish eat? hypothesis: independent variable: dependent variable: 4. what effect does light have on plant growth? hypothesis: independent variable: dependent variable:

Explanation:

Step1: Define hypothesis for studying with music

A possible hypothesis could be "Studying with music will either increase or decrease student test - scores compared to studying without music".

Step2: Identify independent variable for studying with music

The independent variable is whether or not music is present during studying.

Step3: Identify dependent variable for studying with music

The dependent variable is the student test - scores.

Step4: Define hypothesis for food color and fish food intake

A possible hypothesis could be "The color of the food will affect the amount of food fish eat, with brighter colors leading to more or less consumption".

Step5: Identify independent variable for food color and fish food intake

The independent variable is the color of the food.

Step6: Identify dependent variable for food color and fish food intake

The dependent variable is the amount of food the fish eat.

Step7: Define hypothesis for light and plant growth

A possible hypothesis could be "Increasing or decreasing light availability will affect plant growth positively or negatively".

Step8: Identify independent variable for light and plant growth

The independent variable is the amount or intensity of light.

Step9: Identify dependent variable for light and plant growth

The dependent variable is the plant growth (which could be measured by height, number of leaves etc.).

Answer:

1. Hypothesis: Studying with music will either increase or decrease student test - scores compared to studying without music.

Independent variable: Whether or not music is present during studying.
Dependent variable: Student test - scores.

1. Hypothesis: The color of the food will affect the amount of food fish eat, with brighter colors leading to more or less consumption.

Independent variable: The color of the food.
Dependent variable: The amount of food the fish eat.

1. Hypothesis: Increasing or decreasing light availability will affect plant growth positively or negatively.

Independent variable: The amount or intensity of light.
Dependent variable: Plant growth.