The Mystery of Mars Crossword
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
 
 
Down: 1) one who specializes in the study of geology the science that deals with the structure of earth. 3) to cause to swell by filling with air or gas4) to find out what something is made of by taking it apart. 5) fierce; strong and violent7) a bowl-shaped depression in a surface made by an explosion or the impact of a body, like a meteorite8) so small it can only be seen through a microscope10) the layer of gases that surrounds a planet11) mist, smoke, or dust in the air15) severe16) to have let the air out of something Across: 2) the rate of speed in walking, running, or moving6) saying or indicating "no"9) a group of two or more atoms linked together12) the force of one object striking against another13) having to do with an early or first stage of development14) a living thing17) force cause by one thing pushing against another thing18) to imagine to exist or be true; likely19) suitable to live in or on20) a very small piece of something
 

 

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