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Physical
Earth
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Physical
Physical
Physical
Where does electricity come from?
James Smith
-
August 4, 2020
Physical
Why can’t hot iron magnet attract iron?
James Smith
-
August 4, 2020
Physical
Why magnets attract iron?
James Smith
-
August 4, 2020
Physical
Why must large lightning rods be installed on large buildings?
James Smith
-
August 4, 2020
Physical
Lightning formed like?
James Smith
-
August 4, 2020
Physical
Why do you hear “crackling” when you take off your sweater?
James Smith
-
August 4, 2020
0
Physical
Why a drop of ink after diffusion in water will not automatically gather?
James Smith
-
August 4, 2020
0
Physical
Why can’t a permanent engine be built?
James Smith
-
August 4, 2020
0
Physical
Why when flying, behind the plane dragged a strip of white smoke?
James Smith
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August 4, 2020
0
Physical
Why is the window glass freezing into ice flowers?
James Smith
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August 4, 2020
0
Physical
Why use a pressure cooker to cook food easily?
James Smith
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August 4, 2020
0
Physical
Why dirty snow melts before clean snow?
James Smith
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August 4, 2020
0
Physical
Why does the snowball roll bigger?
James Smith
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August 4, 2020
0
Physical
Why say dry ice is not ordinary tape?
James Smith
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August 4, 2020
0
Physical
Why is ice always closed on water?
James Smith
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August 4, 2020
0
Physical
How do icicles under a porch form?
James Smith
-
August 4, 2020
0
Physical
Winter, why the breath in the mouth is white?
James Smith
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August 4, 2020
0
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