The presence of water in solid, liquid and gaseous forms is one of the primary factors that distinguishes Earth from its neighbors in the solar system. In this activity, students will toss a globe to collect data on whether there is more surface water or land on Earth. Materials NASA image – " Earthrise " NASA image – " The Blue Marble " NASA/NOAA interactive image – " Earth Without Shadows or Clouds " Blue and brown crayons (one set per pair of students) Inflatable or otherwise soft-sided glob