edHelper.com Earth Science

A System of Cycles, Part 1

---

A System of Cycles, Part 1
Reading Level

	edHelper's suggested reading level:	high interest, readability grades 6 to 8
	Flesch-Kincaid grade level:	7.67

Vocabulary

	challenging words:		thermodynamics, radioactive, internal, universe, atmosphere, reality, density, interior, transfer, material, external, budget, fantasy, produce, release, addition
	content words:		Mother Nature, In System

---

Print A System of Cycles, Part 1

Print A System of Cycles, Part 1  (font options, pick words for additional puzzles, and more)

Quickly Print

Quickly print reading comprehension

Proofreading Activity

Print a proofreading activity

---

Feedback on A System of Cycles, Part 1

Leave your feedback on A System of Cycles, Part 1  (use this link if you found an error in the story)

---

A System of Cycles, Part 1 By Trista L. Pollard

---

¹     Your parents have a budget that they follow each month. You have a budget you need to follow each week so your allowance doesn't disappear. Mother Nature also has a budget for the Earth's energy.
 
²     Imagine, Mother Nature sitting at her desk balancing her energy checkbook. That's fantasy, but in reality the flow of our planet's energy is predictable. There are two laws of thermodynamics that explain our flow of energy. The first law of thermodynamics says that energy is cycled through systems. However, it cannot be created or destroyed. The budget of energy takes place during the transfer. Any addition of energy in our planet's system is balanced by subtractions of energy from the system. Energy from the sun is absorbed and reflected by our planet in the same amounts. Matter can also be transferred through the Earth system. It also cannot be created or destroyed.
 
³     The second law of thermodynamics says that as energy is transferred, matter becomes less organized over time. Simply put, energy is spread out uniformly in our universe more and more over time. Remember, our spheres on Earth are open systems. These spheres store matter and energy in reservoirs. There is a constant flow of matter and energy between these spheres.

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

---

Weekly Reading Books

Create Weekly Reading Books Prepare for an entire week at once!

---

Earth Science

Earth Science

---

More Lessons

Special Education Science Materials for Teachers

---

More Activities, Lesson Plans, and Worksheets

Back to School Graphic Organizers Alphabet Worksheets Sight Words Math Worksheets Mazes 50 States 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 © 2011 edHelper