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