<p>pointless.......</p>
<p>dull.......</p>
<p>my pencil.......</p>
<p>mechanical.......</p>
<p>geometric..........</p>
<p>sequences.......</p>
<p>Dna..........</p>
<p>acidic.........</p>
<p>litmus paper.....</p>
<p>pH...........</p>
<p>acid..........</p>
<p>potential of hydrogen........</p>
<p>scale...........</p>
<p>periodic table.........</p>
<p>elements......................</p>
<p>metals . .</p>
<p>iron . . .</p>
<p>curtain.........</p>
<p>stage.......</p>
<p>production........</p>