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