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