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                                       How Do




                       Leaves Get Air?






                        We just saw that seeds need air

                      to sprout. Roots need air, too. Air is                           You can easily poke your


                      also part of photosynthesis.                                     finger into good garden soil.

                        As they make food, green leaves                                 The loose soil holds lots of

                      take air in and let it out. Let’s find                            tiny spaces. Those air-filled


                      out how.                                                          spaces keep roots healthy.


                      What you need:













                                                                     leafy green
                                                                         plant
                      petroleum
                          jelly






                                                                      camera






                       masking
                          tape



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