edHelper.com
Rating Rocks



Rating Rocks
Reading Level
     edHelper's suggested reading level:   grades 3 to 5
     Flesch-Kincaid grade level:   5.32

Vocabulary
     challenging words:    calcite, gypsum, quartz, easily, lower, talc, rocks, rate, simple, fingernail, order, describe, along, what, nail, someone
     content words:    Friedrich Mohs, With Mohs


Print Rating Rocks
     Print Rating Rocks  (font options, pick words for additional puzzles, and more)


Quickly Print - PDF format
     Quickly Print: PDF (2 columns per page)

     Quickly Print: PDF (full page)


Quickly Print - HTML format
     Quickly Print: HTML


Proofreading Activity
     Print a proofreading activity


Feedback on Rating Rocks
     Leave your feedback on Rating Rocks  (use this link if you found an error in the story)



Rating Rocks
By Cindy Grigg
  

1     What would you say if someone asked you to describe a rock in one word? You might say "hard." All rocks are pretty hard, but some are harder than others. How would you rate a rock?
 
2     Rocks are made of minerals. A German geologist named Friedrich Mohs (MOWHS) invented a scale to rate the hardness of minerals. He chose ten common minerals. He put them in order from softest to hardest and gave them numbers from one to ten.
 
3     Each mineral on the scale will scratch those with lower numbers. For example, calcite is number three on the scale. It will scratch minerals one (talc) and two (gypsum). Your fingernail can also scratch minerals with a hardness of one or two.

Paragraphs 4 to 6:
For the complete story with questions: click here for printable



Weekly Reading Books

          Create Weekly Reading Books

Prepare for an entire week at once!


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





Copyright © 2012 edHelper