A) motion B) light C) liquid D) energy
A) vibrating objects B) thinking about objects C) changes in the state of matter D) energy changing form
A) empty space B) solid objects C) water D) matter
A) gases B) gels C) solids D) liquids
A) a pool of water B) a block of iron C) a mixture of gases D) empty space
A) waves B) straight lines C) circular motions D) empty space
A) see B) speak C) hear D) feel
A) false B) true
A) a form of energy that travels in waves and can move in empty space B) the substance that does not allow electricity to travel through it C) a form of energy produced by vibrating objects D) the amount of matter in an object
A) the measure of the amount of gravity acting on an object's mass B) a force that works against motion C) move back and forth rapidly D) a form of energy produced by vibrating objects |