Worksheets and No Prep Teaching Resources
Worksheets and No Prep Teaching Resources
Reading Comprehension Worksheets
Animal Themes
Invertebrates
Oceans
Sea Urchins

Animal Themes
Animal Themes


Sea Urchins
Print Sea Urchins Reading Comprehension with Fifth Grade Work

Print Sea Urchins Reading Comprehension with Sixth Grade Work

Print Sea Urchins Reading Comprehension

Reading Level
     edHelper's suggested reading level:   grades 5 to 6
     Flesch-Kincaid grade level:   6.12

Vocabulary
     challenging words:    fluid-filled, rolled-up, tooth-like, vascular, inward, ranks, carbonate, needle-sharp, phylum, spiny, internal, fused, grazers, separate, among, natural


Sea Urchins   

1     Sea urchins are like rolled-up hedgehogs. They have pointy spines. The spines project out of their globe-shaped bodies. The name "urchin" is an old name for the round, spiny hedgehog. Their needle-sharp spines are sea urchins' best line of defense. The spines are poisonous in some species.
 
2     Hiding among the spines are five paired rows of tube feet (often tipped with suckers). Sea urchins control them through an internal water vascular system. By adjusting the amount of water inside, sea urchins can expand or contract their fluid-filled feet to move about, gather food, or keep a good grasp on rocks.
 
3     Beneath their menacing spines, sea urchins' bodies are covered with a hard skeleton. It is also called a test, and it is made of calcium carbonate. Upon a closer look, we can see that the test is made up of ten separate plates that have fused together.

Paragraphs 4 to 6:
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Animal Themes
             Animal Themes


Invertebrates
             Invertebrates


Oceans
             Oceans



Animals
    Amphibians  
 
    Birds  
 
    Deserts  
 
    Fish  
 
    Freshwater  
 
    Grasslands  
 
    Insects  
 
 
    Invertebrates  
 
    Mammals  
 
    Oceans  
 
    Polar Regions  
 
    Rain Forest  
 
    Reptiles  
 



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