Worksheets and No Prep Teaching Resources
Worksheets and No Prep Teaching Resources
Reading Comprehension Worksheets
How Things Work
How Does a TV Work?

How Things Work
How Things Work


How Does a TV Work?
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Print How Does a TV Work? Reading Comprehension


Reading Level
     edHelper's suggested reading level:   grades 5 to 8
     Flesch-Kincaid grade level:   5.73

Vocabulary
     challenging words:    negatively-charged, preset, recording, resent, electromagnetic, transmit, recorder, receiver, towers, circuit, broadcast, satellite, videotape, equally, strengthen, speaker
     content words:    When TV, Cable TV


How Does a TV Work?
By Cindy Grigg
  

1     Caption: Behind-the-scenes of the ESPN show SportsCenter. Notice the three TV cameras that are recording the show.
 
2     Did you ever wonder how TV works? How does your favorite TV show get to your TV set? Your favorite TV show begins in a studio. TV cameras record the sound and pictures. TV cameras change the sound and light into electromagnetic waves. Let's call them EM waves. This form of invisible energy makes a pattern that is like a code. When the code is "read," it is changed back into sound and pictures on your TV set.
 
3     EM waves recorded by the TV cameras are sent to the TV station's tower. This tower sends the signal to other towers called broadcasting towers. Because buildings and mountains can block electromagnetic waves, the signal gets picked up by different towers and resent. Sometimes the tower's signal is beamed up to a satellite. Satellites can strengthen the waves and send them to anywhere in the world. Many people have a satellite dish at their home. This dish receives TV signals from satellites.

Paragraphs 4 to 10:
For the complete story with questions: click here for printable



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