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