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      <title>Period D Waves Questions  by </title>
      <link>https://padlet.com/alapane/i7r1ef2hx78w1xxx</link>
      <description>Our questions to help us figure out, &quot;How do light and sound behave and travel? How can we use this knowledge to explain what happens to the bell and light when air is removed from the jar?&quot;
</description>
      <language>en-us</language>
      <pubDate>2021-03-21 19:39:18 UTC</pubDate>
      <lastBuildDate>2021-03-23 14:14:34 UTC</lastBuildDate>
      <webMaster>hello@padlet.com</webMaster>
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      <item>
         <title>SS</title>
         <author></author>
         <link>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343027534</link>
         <description><![CDATA[<div>why are sound and light waves different </div>]]></description>
         <enclosure url="" />
         <pubDate>2021-03-23 14:07:31 UTC</pubDate>
         <guid>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343027534</guid>
      </item>
      <item>
         <title>Owen C</title>
         <author></author>
         <link>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343028669</link>
         <description><![CDATA[<ul><li>Why did the light not have a reaction to no air </li></ul><div><br></div>]]></description>
         <enclosure url="" />
         <pubDate>2021-03-23 14:07:42 UTC</pubDate>
         <guid>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343028669</guid>
      </item>
      <item>
         <title>CJ</title>
         <author>cjencik</author>
         <link>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343028747</link>
         <description><![CDATA[<div><br></div><ul><li>What would bass boosted sound like  <br><br></li></ul><div><br></div>]]></description>
         <enclosure url="" />
         <pubDate>2021-03-23 14:07:43 UTC</pubDate>
         <guid>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343028747</guid>
      </item>
      <item>
         <title>NV</title>
         <author></author>
         <link>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343029761</link>
         <description><![CDATA[<div>Why do we not see sound</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-03-23 14:07:53 UTC</pubDate>
         <guid>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343029761</guid>
      </item>
      <item>
         <title>why does it expand when air gets taken out  Jp</title>
         <author>jplaskett</author>
         <link>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343030115</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2021-03-23 14:07:56 UTC</pubDate>
         <guid>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343030115</guid>
      </item>
      <item>
         <title>MD</title>
         <author>mdufresne1</author>
         <link>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343030301</link>
         <description><![CDATA[<div><strong>Why does the sound get quieter?</strong></div>]]></description>
         <enclosure url="" />
         <pubDate>2021-03-23 14:07:58 UTC</pubDate>
         <guid>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343030301</guid>
      </item>
      <item>
         <title>PM</title>
         <author></author>
         <link>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343031514</link>
         <description><![CDATA[<div><strong>When you add air why does it go silent</strong></div>]]></description>
         <enclosure url="" />
         <pubDate>2021-03-23 14:08:07 UTC</pubDate>
         <guid>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343031514</guid>
      </item>
      <item>
         <title>MJB</title>
         <author></author>
         <link>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343031911</link>
         <description><![CDATA[<div><strong>What is the base of the bell jar made out of?</strong></div>]]></description>
         <enclosure url="" />
         <pubDate>2021-03-23 14:08:11 UTC</pubDate>
         <guid>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343031911</guid>
      </item>
      <item>
         <title>BS</title>
         <author></author>
         <link>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343033339</link>
         <description><![CDATA[<div>what would happen if you put more air in and not take the air?</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-03-23 14:08:23 UTC</pubDate>
         <guid>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343033339</guid>
      </item>
      <item>
         <title>How would the waves differ when the air gets sucked out</title>
         <author></author>
         <link>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343034474</link>
         <description><![CDATA[<div>ɹǝdsɐſ</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-03-23 14:08:33 UTC</pubDate>
         <guid>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343034474</guid>
      </item>
      <item>
         <title>BD</title>
         <author></author>
         <link>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343038103</link>
         <description><![CDATA[<div>what do the different waves looks like?</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-03-23 14:09:05 UTC</pubDate>
         <guid>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343038103</guid>
      </item>
      <item>
         <title>PN- </title>
         <author></author>
         <link>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343038191</link>
         <description><![CDATA[<div>Do sound waves ever stop?</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-03-23 14:09:06 UTC</pubDate>
         <guid>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343038191</guid>
      </item>
      <item>
         <title>RR</title>
         <author>rrenaud</author>
         <link>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343041317</link>
         <description><![CDATA[<div>How does the marshmallow expand so big and decrease so much?</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-03-23 14:09:33 UTC</pubDate>
         <guid>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343041317</guid>
      </item>
      <item>
         <title> CA     How do we get such clear sound from sound waves .</title>
         <author>cahlgren</author>
         <link>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343041698</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2021-03-23 14:09:37 UTC</pubDate>
         <guid>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343041698</guid>
      </item>
      <item>
         <title>LY- question</title>
         <author></author>
         <link>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343042891</link>
         <description><![CDATA[<div><strong>What would happen if we sucked the air out of earth? Would we expand than crush like a marshmallow, or would we go silent???</strong></div>]]></description>
         <enclosure url="" />
         <pubDate>2021-03-23 14:09:48 UTC</pubDate>
         <guid>https://padlet.com/alapane/i7r1ef2hx78w1xxx/wish/1343042891</guid>
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