Madison is trying to determine which science investigation she should do for the school science fair. She knows that some investigations involve an experiment and that some only involve making observations Which question is one that she can answer by performing a scientific experiment, instead of only making observations?
Which extraction method yields the most DNA from fruit?
How did Watson and Crick determine the structure of DNA?
Which family members exhibit blue, green, and brown eyes?
Which organisms exhibit the most similar physical characteristics?

Astudent sees several ants walking up a wall following the exact same trail that an ant took earlier. she wants to apply the scientific method to determine how the ants detected the trail. which of these steps would come first in her application of the scientific method? perform an experiment by cleaning the scent away from part of the trail. draw a conclusion that the ants follow a scent trail. make a prediction about what the ants will do after she cleans away part of the trail. hypothesize that the ants are following a scent trail that the first ant left.