Page 219 - DK Children's Encyclopedia
P. 219

Science                                                                           SEE ALSO

                                                                                               ▸ ▸ Astronomy  p.32
                                                                                               ▸ ▸ Biology  p.38
           Science is the search for truth and knowledge. It’s about                           ▸ ▸ Chemistry  p.58
           understanding the world and learning how and why things                             ▸ ▸ Medicine  p.160
           work the way they do. Science includes doing experiments                            ▸ ▸ Physics  p.192

           to test predictions and collect evidence. We divide science                         ▸ ▸ The sciences
           into three main areas: chemistry, biology, and physics.                              pp.218–219






               Biology
              The study of
            living things and
           their surroundings is
         called biology. It includes
            the human body,
           plants, and animals.










                                                                                                      Chemistry
                                                                                                     Looking at what
                                                                                                   things are made of is
                                                                                                  known as chemistry. This
                                       Physics                                                    includes the tiny building
                                     Physics studies                                               blocks of all materials,
                                   light, sound, forces,                                              called atoms.
                                    waves, magnets,
                                    electricity, energy,
                                    and the planets.


         Scientists
         Scientists are people who investigate the world
         to answer questions and find solutions to
         problems. They do experiments to see if ideas
         are right or wrong, and they share information.




             Inventions
             Studying science helps us to                        Thomas Edison                Science isn’t
             create new things. For example,                     invented the             just facts in a book—
             if we understand movement, we   Copy of             electric light bulb        it’s a whole way
             can design better cars. If we   Edison’s            in 1879, while
             understand the body, we can   light bulb            studying electricity.      of thinking and
             invent medicines to help                                                       discovering.
             fight off sickness.





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