A) liquid B) energy C) light D) motion
A) vibrating objects B) thinking about objects C) energy changing form D) changes in the state of matter
A) empty space B) water C) matter D) solid objects
A) liquids B) gels C) gases D) solids
A) a pool of water B) a block of iron C) a mixture of gases D) empty space
A) empty space B) straight lines C) waves D) circular motions
A) speak B) hear C) feel D) see
A) false B) true
A) the amount of matter in an object 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) a form of energy produced by vibrating objects
A) move back and forth rapidly B) a form of energy produced by vibrating objects C) the measure of the amount of gravity acting on an object's mass D) a force that works against motion |