Question

what is the first step in the scientific method? *
collect data
ask a question
form a conclusion
make a graph

true/false: a hypothesis must be testable. *
true
false

in an experiment testing sunlight’s effect on plant growth, which is the dependent variable? *
amount of sunlight
height of the plant
type of soil
pot size

why is it important to have a control group? *
your answer

Explanation:

The scientific method begins with asking a question to guide investigation. A hypothesis needs testability for empirical validation. The dependent variable is the measured outcome, here plant height. A control group establishes a baseline to isolate the independent variable's effect.

Answer:

B. Ask a question
True
B. Height of the plant
To provide a baseline for comparison, ensuring observed effects result from the independent variable.