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Weight on and off the Earth We are so used to our life on the surface of the earth that it ...

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paid off    took off    showed off    went off  
weight  gravity  density  attraction  
it is too small to have a gravitational pull of its own  its pull is so small that we tend to ignore it  its pull disappears in the presence of the earth’s gravitation  it tends to melt and loses its gravitational pull  
it demands too great an effort for us to do so  we are too familiar with the way things are to question the ideas  we have proved that those ideas are correct  we are so sure of ourselves that we never doubt anything on the earth  
it is fixed if it is outside the earth’s gravitational pull  it decreases four times when it is 4,000 miles from the earth’s center  it varies with the change of the gravitational attraction between two objects  things increase in amount as they are closer to the earth’s surface  
though    although    even though    as if  
1 pound.  2 pounds.  3 pounds.  4 pounds.  
believing    having believed    believed    to believe  
Having believed  Believing  Believed  Being believed  
turned off  taken off  set off  broken off  
turned off    brought into    set free    taken off  
one eighty    one of eighty    one the eightieth    one eightieth  
However    Whatever    Which    While  
different weight systems in different places.  freedom from traditional ideas.  traveling from the earth to the moon.  the effect of gravitation on weight.  
paid off    took off    went off    showed off  
it is fixed if it is outside the earth's gravitational pull.  it decreases four times when it is 4,000 miles from the earth's center.  it varies with the change of the gravitational attraction between two objects.  things increase in amount as they are closer to the earth's surface.  

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