Page 166 - DK Children's Encyclopedia
P. 166

Meteorites                                                                        SEE ALSO

                                                                                               ▸ ▸ Asteroids  p.30
                                                                                               ▸ ▸ Atmosphere  p.33
           Meteorites are pieces of space rock (asteroids and comets)                          ▸ ▸ Comets  p.68
           that reach the surface of the Earth. They come in many                              ▸ ▸ Metals  p.162
           different sizes, from tiny pebbles to rocks the size of a                           ▸ ▸ Rocks and

           house. Only big meteorites can create craters when                                   minerals  p.214
           they hit the ground.                                                                ▸ ▸ Solar system
                                                                                                p.233


       Space rocks                                  Stony-iron                              Meteroids are small
                                                                                            pieces of asteroids
                                                    Stony-iron
       Meteorites are made of                       meteorites are a                        and comets.        Space
       materials that are also                      mixture of metal    Asteroid                   The atmosphere
       found on Earth. There                        and rock. They                                 is a layer of gases
                                                    are very rare.
       are three main types.                                                   Meteoroid           around the Earth.
                                                                                                            Atmosphere

                                                                Changing names             Meteor
                                                                The name of a space rock
       Stony                            Iron                    changes as it approaches
       Most meteorites                  Iron meteorites are made   Earth. In space, it is a           Meteorite
       that are found are               of iron and nickel metals.   meteoroid; in the atmosphere,
       stony. They come                 They come from the cores
       from the crusts of               of asteroids.           it is a meteor; and on the               Earth
       asteroids.                                               ground, it is a meteorite.






























                                                                            Crash site
                                                                            If a meteorite makes it through Earth’s
                                                                            atmosphere, it crashes into the surface.
                                                                            The hole it leaves is called an impact
                                                                            crater. This huge crater is found in
                                                                            Winslow, Arizona.


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