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