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