A) motion
B) light
C) liquid
D) energy

A) vibrating objects
B) energy changing form
C) changes in the state of matter
D) thinking about objects

A) water
B) matter
C) empty space
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) waves
B) circular motions
C) empty space
D) straight lines

A) see
B) speak
C) feel
D) hear

A) false
B) true

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) the measure of the amount of gravity acting on an object's mass
B) move back and forth rapidly
C) a form of energy produced by vibrating objects
D) a force that works against motion