7th Grade Science Student ebook

(Marvins-Underground-K-12) #1

Chapter 1


Studying Life


Earth is a living planet. Life can be found in places where you
least expect it! Tiny living things can be found in the
extremely hot openings of undersea volcanoes, and even in
hot springs full of acid. Scientists from the University of
Colorado have studied tiny organisms that survived for
twenty years at the bottom of a dry stream bed in cold
Antarctica. When water finally reached them, the organisms
sprang to life after only one day, and within a week, an entire
community had formed! Researchers wonder if these tough
life forms could even exist on the cold, dry surface of Mars. In
this chapter you will begin studying life science, a fascinating
and sometimes surprising subject.



  1. How do you measure the world’s largest living
    thing?

  2. Can mud turn into worms?

  3. How do you study living things?

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