Question

scientific method practice the scientific method is a process that scientists follow in order to determine the answer to a problem. you are probably familiar with learning the scientific method as a process with a fixed number of steps, but the actual steps a scientist takes may change depending on the type of experiment that they are performing. the scientific method can be flexible, but usually follows the same basic order.
directions: put the steps of the scientific method in order from 1 to 8.
do research
determine if the hypothesis is rejected or accepted
design an experiment
analyze data
modify of repeat experiments
form a hypothesis
state the problem
perform experiment
using your knowledge of the scientific method, match the steps to the parts of the scenario below.

1. katie makes a bar graph showing the number of times her brother eats all, part of, or none of each category of snack.
2. katie is a nice sister who always fixes a snack for her little brother after school. one day, he does not want to eat the snack that she prepared. she wonders why.
3. katie plans a menu for the next two weeks, dividing each snack two categories: \sweet\ or \salty\. she prepares a data table, where she will mark if he eats all, part, or none of his snack.
4. looking over her data, katie sees that there is no clear trend as to whether her brother prefers sweet or salty snacks. she decides that she was wrong.
5. after determining that her original hypothesis was wrong, katie decides that she will next measure how her brother eats after days he has gym class. perhaps he is hungrier after gym class. she plans a new menu and makes a new data table to fill out.
6. katie looks in the kitchen cabinets at home to see what food is available. she makes a list of all the snacks that she has prepared for her brother over the last month.
7. she hypothesizes that her brother prefers salty snacks.
8. katie follows the menu for two weeks and makes observations after her brother finishes eating. she marks on her data table whether he eats all, part, or none of his snack.

Explanation:

The scientific method generally starts with stating the problem, followed by research, forming a hypothesis, designing an experiment, performing the experiment, analyzing data, determining if the hypothesis is accepted or rejected, and then modifying or repeating experiments. In the Katie - scenario, we match each action to the appropriate step based on these general principles.

1. Making a bar - graph is data analysis.
2. Wondering why her brother doesn't want to eat the snack is stating the problem.
3. Planning a menu and data table is experiment design.
4. Deciding she was wrong is determining if the hypothesis is rejected.
5. Planning a new menu after the original hypothesis was wrong is modifying the experiment.
6. Looking in cabinets and making a list is research.
7. Hypothesizing about her brother's preference is forming a hypothesis.
8. Following the menu and making observations is performing the experiment.

Answer:

1. F. Analyze data
2. A. State the problem
3. D. Design an experiment
4. G. Determine if hypothesis is rejected or accepted
5. H. Modify or repeat experiment
6. B. Do research
7. C. Form a hypothesis
8. E. Perform experiment