Worksheet

Design Information Transfer

Grade 4 - Science - On Level

NameDate

  1. For a classroom code, which signal could transfer information using a pattern?

    • a quieter sound
    • a silent object with no agreed meaning
    • a random color with no code
    • one long and one short flashlight flash

  2. In the harbor warning, what information can this signal communicate: four mirror flashes?

    • taller ripples
    • the flash count can stand for a number
    • the sender's lunch choice without a code
    • no message can ever be sent

  3. Which design test best checks a light or sound code for the stage cue?

    • change every part of the code during the test
    • ask a partner to read the pattern without extra hints
    • uses only short and long flashes
    • judge only whether the signal looks interesting

  4. Which improvement would make the weather alert easier to understand?

    • add clear pauses between message patterns
    • remove the code key
    • light reflects from the tray and enters the eye
    • crests closer together

  5. Why can light or sound be used for the team signal?

    • signals work without a receiver
    • random noise always has one meaning
    • patterns of light or sound can be agreed to represent messages
    • only written words can communicate

  6. For a museum exhibit, which signal could transfer information using a pattern?

    • one long and one short flashlight flash
    • a random color with no code
    • light reflects from the guitar and enters the eye
    • a quieter sound

  7. In the bus-line notice, what information can this signal communicate: three short flashlight flashes?

    • the code can send the message yes
    • no message can ever be sent
    • a louder sound
    • the sender's lunch choice without a code

  8. Which design test best checks a light or sound code for the garden reminder?

    • judge only whether the signal looks interesting
    • change every part of the code during the test
    • ask a partner to read the pattern without extra hints
    • uses ten craft sticks

  9. Which improvement would make the library pickup code easier to understand?

    • crests farther apart
    • remove the code key
    • add clear pauses between message patterns
    • make every signal identical

  10. Why can light or sound be used for the trail message?

    • waves cannot carry any pattern
    • patterns of light or sound can be agreed to represent messages
    • signals work without a receiver
    • only written words can communicate
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