Question

observations and data
data are information gathered by observation or experimentation that can be used in calculating or reasoning. this information may be anything that a scientist perceives through the senses or detects through instruments.
in an investigation, everything a scientist observes must be recorded. the setup and procedures need to be recorded carefully. by carefully recording this information, scientists make sure they will not forget anything.
scientists analyze data to determine the relationship between the independent and dependent variables in an investigation. then they draw conclusions about whether the data support the investigations hypothesis.
7 apply suppose you want to test the hypothesis that plants grow taller when they receive more sunlight. identify an independent variable and a dependent variable for this investigation.

Explanation:

The independent variable is the factor that is changed or manipulated. Here, the amount of sunlight is what the scientist can control. The dependent variable is the factor that is measured as a result of changes in the independent - variable. In this case, plant height is what is being measured.

Answer:

Independent variable: Amount of sunlight
Dependent variable: Plant height