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