Hi, I need some help.

prntsc[remove]r.[remove]com/[remove]j6[remove]kl9e

The table shows the speed of sound waves in different materials. Sound
would travel most quickly through ______.

wood****(?)
water
air
outer space

*Table shown in screenshot, Lightshot is a Secure site*

prntscr[remove].[remove]com/[remove]j6k[remove]moo

The table shows the thermal conductivity of some common materials.
Which would be the best insulator?

diamond
gold
lead
concrete*****(?)

*Table shown in screenshot, Lightshot is a Secure site*

Thanks,

~A, for Anonymous.

1 answer

you are correct