microscopic mineral motion organism
decomposer density deposition direction
conservation constellation consumer
stationary object survival universe
pulley reflection refraction reproduce
resistance revolution rotation scientific
variable volcano wheel and axle
earthquake electrical circuit electricity
physical change position producer protest
erosion evidence force fossil friction
inclined plane inherited traits insulator
chemical change classification conductor
fulcrum galaxy hypothesis igneous rock
lever magnetic metamorphic rock
adaptation atomosphere balance scale
method sediment sedimentary rock speed