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