In science class, harry and his classmates are performing a controlled scientific investigation. the teacher has already picked a topic and testable question for the class to study and has provided background research on the topic. before performing the investigation, the students must first a. form a hypothesis to predict the outcome of the investigation. b. analyze the data that results from the investigation. c. record data from the investigation in graphs and charts. d. communicate the results of the investigation with the teacher.

The steps of research follow the sequence as

a) make an observation

b) Propose a hypothesis for the observation made

c) Prediction of the correctness of hypothesis

d) Perform experiment

e) conclude the problem

So answer is

i) record data from the investigation in graphs and charts.

ii) form a hypothesis to predict the outcome of the investigation.

iii) analyze the data that results from the investigation

iv) communicate the results of the investigation with the teacher.

one state would change   like louisiana to texas. thats a change

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