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