February Monthly Themes and Daily Theme Units
Monthly Themes
Solar System

February 18th
Theme Unit

The Discovery of Pluto



Pluto
Reading Level
     edHelper's suggested reading level:   grades 5 to 7
     Flesch-Kincaid grade level:   6.6

Vocabulary
     challenging words:    elliptical, fly-by, planetary, probe, spacecraft, orbit, atmosphere, gravity, mainly, mathematical, ponder, outer, ninth, rotation, launched, core
     content words:    Take Pluto, We Know, Hubble Space Telescope, Clyde Tombaugh, Lowell Observatory, Percival Lowell, We Don't Know, International Astronomical Union, New Horizons, Kuiper Belt


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The Discovery of Pluto Math Printable
     The Discovery of Pluto Math Problems




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