___ are machines that can store and work with information.

• telephones

• refrigerators

• computers

Some materials lose their resistance when they get very ___.

• cold

• hot

• tired

Tags

NGSS.MS-PS1-4

Television signals and telephone calls can be sent ___.

• through water

• on laser light

• through a time warp

Tags

NGSS.MS-PS4-2

___ can be programmed to do jobs that people once had to do.

• robots

• vacuum cleaners

• laser lights

Tags

NGSS.MS-ETS1-4

Most robots have ___ inside them.

• feelings

• fax machines

• computers

Whenever you talk to some one, you are ___.

• communicating

• annoying

• conducting

Without ___ it would be much more difficult to send signals long distances.

• Morse code

• typewriters

• satellites

Tags

NGSS.MS-PS4-2

NGSS.MS-PS4-3

The ___ is used to enter information into a computer.

• output device

• input device

___ is much stronger than natural light.

• the sun

• laser light

Lasers can carry ___ signals at once than radio waves.

• more

• fewer

• the same

Tags

NGSS.MS-PS4-3