pebble tree precipitation growth position
growth light size motion death plant
pushing zigzag parent cloud teamwork air
behavior pattern diversity of life rock
weight prehistoric mixture states of
animals similarity month universe
magnification heat straight-line motion
freezing week ocean animal patterns
gravity energy chart burning thermometer
sun's position distance day machine
conditions temperature reasoning dinosaur
characteristics magnet habitat earth
vibration sky liquid ruler salt weather
pulling horsetail shape star water
gas balance mammoth boulder
matter scientist earth's rotation
solid seasonal daily change sun's size
prediction magnifier food science
dissolving circular insect similarities
materials organisms soil differences