Question

a. independent variable? studying with or without music
b. dependent variable? student test score

c. hypothesis:

what effect does food color have on the amount of food fish eat?
a. independent variable?
b. dependent variable?
c. hypothesis:

Explanation:

For the first experiment about studying with or without music and student test - scores:

• The independent variable is the factor that is changed or manipulated, which is studying with or without music.
• The dependent variable is the outcome that is measured, which is the student test score. A possible hypothesis could be "Students who study without music will have higher test scores than those who study with music."

For the second experiment about food color and the amount of food fish eat:

• The independent variable is the factor being manipulated, which is food color.
• The dependent variable is the outcome being measured, which is the amount of food fish eat. A possible hypothesis could be "Fish will eat more food that is colored red compared to other colors."

Answer:

1.

• a. Studying with or without music
• b. Student test score
• c. Students who study without music will have higher test scores than those who study with music

2.

• a. Food color
• b. Amount of food fish eat
• c. Fish will eat more food that is colored red compared to other colors