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