Worksheets and No Prep Teaching Resources
Worksheets and No Prep Teaching Resources
Reading Comprehension Worksheets
October Worksheets
How Things Work
Sound


How Things Work
How Things Work



What Causes a Sonic Boom?

A Short Reader

Print What Causes a Sonic Boom? Reading Comprehension with Fourth Grade Work

Print What Causes a Sonic Boom? Reading Comprehension with Fifth Grade Work

Print What Causes a Sonic Boom? Reading Comprehension with Sixth Grade Work

Print What Causes a Sonic Boom? Reading Comprehension

Reading Level
     edHelper's suggested reading level:   grades 4 to 6
     Flesch-Kincaid grade level:   5.25

Vocabulary
     challenging words:    first-time, observer, supersonic, density, actually, jets, level, planes, exactly, caption, travels, faster, waves, packed, record, shock
     content words:    On October, Chuck Yeager, Thrust Super Sonic Car, Andy Green
What Causes a Sonic Boom?

By Cindy Grigg
1     Caption: The picture shows the sound waves made by an airplane flying at supersonic speed. We can tell that the plane is flying faster than the speed of sound by the fact that all the sound waves lie behind the plane. An observer on the ground would hear a sonic boom when the shock wave (shown by the cone) reaches the observer's location on the ground.
 
2     Sound travels through the air around Earth at about one thousand feet per second. The speed of sound varies. It depends on the air temperature and density. When men first began flying airplanes, they could not travel as fast as sound. Over the years, though, airplanes could fly faster and faster. They began trying to break the "sound barrier." This speed is known as "Mach 1." (Mach 1 is about 750 mph at sea level.) On October 14, 1947, Chuck Yeager became the first pilot on record to break the sound barrier. His top speed that day was Mach 1.06 - about 800 mph!
 
3     Today many jet planes can fly that fast or even faster. They are called supersonic jets. When a jet airplane goes faster than the speed of sound, people on the ground hear a sonic boom.

Paragraphs 4 to 5:
For the complete story with questions: click here for printable





Feedback on What Causes a Sonic Boom?
     Leave your feedback on What Causes a Sonic Boom?  (use this link if you found an error in the story)



Weekly Reading Books

          Create Weekly Reading Books

Prepare for an entire week at once!


How Things Work
             How Things Work


Sound
             Sound


More Lessons
             October Worksheets and Workbooks | edHelper.com


Science
             Science


    Careers in Science  
 
    Caring for Earth  
 
    Clouds  
 
    Dinosaurs  
 
    Earth's Land  
 
    Earth  
 
    Earthquakes  
 
    Electricity  
 
    Energy  
 
    Erosion  
 
    Food Pyramid  
 
    Food Webs and Food Chain  
 
    Forces and Motion  
 
    Fossils  
 
    Health and Nutrition  
 
    How Things Work  
 
    Landforms  
 
    Life Science  
 
    Light  
 
    Magnets  
 
    Matter  
 
 
    Moon  
 
    Natural Disasters  
 
    Photosynthesis  
 
    Plant and Animal Cells  
 
    Plants  
 
    Rocks and Minerals  
 
    Science Process Skills  
 
    Scientific Notation  
 
    Seasons  
 
    Simple Machines  
 
    Soil  
 
    Solar System  
 
    Sound  
 
    Space and Stars  
 
    Sun  
 
    Tsunami  
 
    Volcanoes  
 
    Water Cycle  
 
    Water  
 
    Weather  
 


More Activities, Lesson Plans, and Worksheets


Back to School
Graphic Organizers
Alphabet Worksheets
Sight Words
Math Worksheets
Mazes
50 States
Education
Teaching

Monthly Themes
January
February
March
April
May
June
July
August
September
October
November
December

Fractions
Place Value
Time and Calendar
Money
Earth Day
Solar System
Analogies
Nouns
Following Directions
Listening
Capitalization
Cursive Writing
Patterns and Sequencing
Dinosaurs
All About Me

Kindergarten
First Grade
Second Grade
Third Grade
Fourth Grade
Fifth Grade
Sixth Grade

Multiplication
Division
Main Idea
Cause and Effect
Measurement
Decimals
Rounding
Order of Operations
Verbs
Community Helpers
Adjectives
Plants
Grammar
Addition and Subtraction
Contractions
Bulletin Board Ideas
Word Searches
Crossword Puzzles
Printable Puzzles

Reading Comprehension
Reading Skills
English Language Arts