atmosphere

conservation                                                                                                                                         

energy                                                                                                                                                

extinct                                                                                                                                               

force

geological features                                                                                                                                  

life cycle

magnetic attraction                                                                                                                                   

matter                                                                                                                                               

moon phases (basic four)

natural resources                                                                                                                                    

observe                                                                                                                                               

offspring                                                                                                                                           

orbit                                                                                                                                                 

organism

photosynthesis

physical change

physical properties

pollution                                                                                                                                             

predator                                                                                                                                             

prey                                                                                                                                                  

rotation

scientific method                                                                                                                                    

solar system                                                                                                                                         

water cycle

weathering