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