Like heat, ____________ is a form of energy and travels in waves.
All the sounds you hear are made when matter _______________.
Sound waves move in all __________________.
We see objects because light is _________________ from them.
Light is made up of these bundles of energy.
Travels in straight lines and has properties of both particles and waves.
Light _________ travel fastest through empty space and travel faster than anything else.
The band of colors that make up white light.
a flat and smooth mirror
a mirror that curves inward
a mirror that curves outward
the bending of a light wave as it moves through a material
lens on these glasses is for nearsighted people
sound can only be heard when it travels through this
Light is a form of __________ that can be seen.
Light travels ____________ than sound.
Light travels in ___________ lines.
Please allow access to your computer’s microphone to use Voice Recording.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Your microphone is muted
For help fixing this issue, see this FAQ.