electricity
sound
light
matter
motion
100
conductor
What is a material through which energy flows easily?
100
vibrate
What is to move quickly back and forth?
100
ray
What is a thin line of light?
100
fuel
What is a material that is burned to produce useful heat?
100
insulator
What is a material through which energy cannot flow easily?
200
electric charges
What is tiny amounts of electricity present in all matter?
200
volume
What is the loudness or softness of a sound?
200
reflect
What is to bounce off an object?
200
temperature
What is the measure of how hot a place or object is?
200
friction
What is a force that makes moving objects slow down or stop?
300
electric circuit
What is the path along which electric current moves?
300
pitch
What is how high or low a sound is?
300
lens
What is a piece of material that bends light rays that pass through it?
300
solid, liquid, gas
What are three states of matter?
300
gravity
What is the force that pulls objects toward the center of the earth?
400
electric current
What is the flow of electric charges?
400
ear
What is the body part that helps us hear?
400
eyes
Parts of your _____ bend light so you can see.
400
chemical change
What kind of change takes place when one kind of matter changes into a different kind of matter?
400
work
What is done whenever a force makes an object move?
500
electromagnet
What is a metal that becomes a magnet when electricity passes through wire wrapped around it?
500
echo
What is sound bouncing back from an object?
500
shadow
What forms when rays of light cannot travel through it?
500
mass
What is the amount of matter in an object?
500
stored energy
What is energy that can change later to a form that can do work?
M
e
n
u