Worksheets and No Prep Teaching Resources
Worksheets and No Prep Teaching Resources
Reading Comprehension Worksheets
Plant and Animal Cells
The Cell Theory

Plant and Animal Cells
Plant and Animal Cells


The Cell Theory
Print The Cell Theory Reading Comprehension with Third Grade Work

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Print The Cell Theory Reading Comprehension


A Short Reader

Reading Level
     edHelper's suggested reading level:   grades 3 to 5
     Flesch-Kincaid grade level:   4.75

Vocabulary
     challenging words:    makeup, basis, unit, microscope, based, thin, flow, slice, during, pass, same, happen, living, life, within, hundred
     content words:    Robert Hooke, This Latin, Matthias Schleiden, Theodor Schwann, Rudolf Virchow, Cell Theory


The Cell Theory
By Cindy Grigg
  

1     In 1665, Robert Hooke used a microscope to look at a thin slice of cork. He saw tiny little shapes that looked like little rooms with walls around each of them. He named them cellulae. This Latin word means "little rooms."
 
2     Almost two hundred years passed by. Microscopes were improved. In 1838, Matthias Schleiden saw that all plants were made of cells. At almost the same time, Theodor Schwann saw that all animals were made of cells. In 1855, Rudolf Virchow determined that all cells came from other cells. These three things are the basis of the Cell Theory:

1. All living things are made of one or more cells.

2. Cells are the smallest unit of life.

3. All cells come from other cells.

Paragraphs 3 to 4:
For the complete story with questions: click here for printable



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Plant and Animal Cells
             Plant and Animal Cells


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