Refer to the Newsela article "How You Can Make a Solar Oven To Cook with a Pizza Box." What is the author's purpose in mentionin
g variables in designing the solar oven? to show the author did not think too hard about the design to encourage readers to vary the design to show how easy it is to produce solar energy to explain how wasteful solar energy production can be
I took the test and this was correct. Variables are conditions that can change with experiments, so it just makes sense that readers' designs would vary slightly anyway.