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