behavior pattern                                                                                                                                     

characteristics

circular motion/ straight line motion / zigzag movement                                                                                             

dissolving                                                                                                                                            

distance                                                                                                                                             

diversity of life                                                                                                                                     

earth resources                                                                                                                                      

gas

habitat

individual differences                                                                                                                                

liquid

magnification                                                                                                                                         

magnifier                                                                                                                                            

observation                                                                                                                                           

parent/offspring similarity                                                                                                                          

pebble                                                                                                                                                

prehistoric                                                                                                                                          

properties

reasoning                                                                                                                                            

scientist                                                                                                                                             

similarities & differences                                                                                                                           

solid

sound                                                                                                                                                 

universe                                                                                                                                             

vibration                                                                                                                                            

weight