A group of scientists are studying a crab. After comparing the crab to other crabs and testing its DNA, the scientists think they have found a new species of crab. What should they do next?
a university professor’s personal blog
a commercial website
an online peer-reviewed science journal
Scientists know that all living things, from the smallest bacterium to the largest blue whale, are made of cells. Why is this a scientific consensus? Check all that apply.
A group of scientists examined a meteorite from Mars and found a carbon-rich substance that is produced when microorganisms decay. They concluded that the meteorite provided evidence there was once life on Mars. Why is this an emerging idea? Check all that apply.
A scientist observes one chimpanzee using sticks and leaves to pull ants out of anthills. The scientist concludes that all chimpanzees use tools. Why should you be skeptical of the conclusion? Choose the best answer.
Think about the sources you would use to get information about scientific ideas. Which sources would you avoid? Check all that apply.
a goverment website
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