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      <title>Unit 1: How can I make new things from old things? by Alicia Reyelts</title>
      <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1</link>
      <description></description>
      <language>en-us</language>
      <pubDate>2023-08-02 16:43:57 UTC</pubDate>
      <lastBuildDate>2023-10-13 16:03:46 UTC</lastBuildDate>
      <webMaster>hello@padlet.com</webMaster>
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      <item>
         <title>Atom</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2712998365</link>
         <description><![CDATA[<div>The basic unit of a chemical element. </div>]]></description>
         <enclosure url="" />
         <pubDate>2023-09-20 15:06:17 UTC</pubDate>
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      <item>
         <title>Property</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2712998531</link>
         <description><![CDATA[<div>A unique characteristic of a substance that helps identify and differentiate between substances. </div>]]></description>
         <enclosure url="" />
         <pubDate>2023-09-20 15:06:24 UTC</pubDate>
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      <item>
         <title>Mass</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2712998707</link>
         <description><![CDATA[<div>The amount of matter in an object or substance. </div>]]></description>
         <enclosure url="" />
         <pubDate>2023-09-20 15:06:29 UTC</pubDate>
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      <item>
         <title>Element</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2712998855</link>
         <description><![CDATA[<div>A substance that cannot be broken down into simpler substances and is composed of only one type of atom. </div>]]></description>
         <enclosure url="" />
         <pubDate>2023-09-20 15:06:35 UTC</pubDate>
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      <item>
         <title>Matter</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2712998971</link>
         <description><![CDATA[<div>Anything that has mass and takes up space. </div>]]></description>
         <enclosure url="" />
         <pubDate>2023-09-20 15:06:40 UTC</pubDate>
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      <item>
         <title>Pure Substance</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2712999183</link>
         <description><![CDATA[<div>Substance that is made up of only one type of atom or molecule. </div>]]></description>
         <enclosure url="" />
         <pubDate>2023-09-20 15:06:46 UTC</pubDate>
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      <item>
         <title>Mixture</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2712999341</link>
         <description><![CDATA[<div>A substance that is made up of two or more different types of substances. </div>]]></description>
         <enclosure url="" />
         <pubDate>2023-09-20 15:06:52 UTC</pubDate>
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      <item>
         <title>Compound</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2713154587</link>
         <description><![CDATA[<div>A substance that is composed of two or more different elements. </div>]]></description>
         <enclosure url="" />
         <pubDate>2023-09-20 16:38:54 UTC</pubDate>
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      <item>
         <title>Volume</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2713158608</link>
         <description><![CDATA[<div>The amount of space that a substance occupies. </div>]]></description>
         <enclosure url="" />
         <pubDate>2023-09-20 16:41:21 UTC</pubDate>
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      <item>
         <title>Density</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2713335837</link>
         <description><![CDATA[<div>Measurable quantity of a substance = mass per volume. (mass/volume)</div>]]></description>
         <enclosure url="" />
         <pubDate>2023-09-20 18:38:27 UTC</pubDate>
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         <title>Molecule</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2713336124</link>
         <description><![CDATA[<div>A group of atoms chemically bonded together. </div>]]></description>
         <enclosure url="" />
         <pubDate>2023-09-20 18:38:40 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2713336124</guid>
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      <item>
         <title>Homogenous Mixture</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2713337343</link>
         <description><![CDATA[<div>A mixture that is the same throughout. </div>]]></description>
         <enclosure url="" />
         <pubDate>2023-09-20 18:39:32 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2713337343</guid>
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      <item>
         <title>Heterogenous Mixture</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2713337498</link>
         <description><![CDATA[<div>A mixture that is not the same throughout. </div>]]></description>
         <enclosure url="" />
         <pubDate>2023-09-20 18:39:39 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2713337498</guid>
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      <item>
         <title>Melting Point</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2716742412</link>
         <description><![CDATA[<div>The temperature at which a solid begins to turn into a liquid. </div>]]></description>
         <enclosure url="" />
         <pubDate>2023-09-22 18:21:03 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2716742412</guid>
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      <item>
         <title>Boiling Point</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2716742483</link>
         <description><![CDATA[<div>The temperature at which a liquid begins to turn into a gas. </div>]]></description>
         <enclosure url="" />
         <pubDate>2023-09-22 18:21:07 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2716742483</guid>
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      <item>
         <title>Solubility</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2716742609</link>
         <description><![CDATA[<div>The ability of a solid substance to be dissolved in a liquid. </div>]]></description>
         <enclosure url="" />
         <pubDate>2023-09-22 18:21:14 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2716742609</guid>
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      <item>
         <title>Quantitative</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2719167471</link>
         <description><![CDATA[<div>An observation that is measurable. </div>]]></description>
         <enclosure url="" />
         <pubDate>2023-09-25 11:34:15 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2719167471</guid>
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      <item>
         <title>Qualitative</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2719167775</link>
         <description><![CDATA[<div>An observation that is descriptive. </div>]]></description>
         <enclosure url="" />
         <pubDate>2023-09-25 11:34:30 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2719167775</guid>
      </item>
      <item>
         <title>Observation</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2719168241</link>
         <description><![CDATA[<div>Something perceived using the five senses. </div>]]></description>
         <enclosure url="" />
         <pubDate>2023-09-25 11:35:00 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2719168241</guid>
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      <item>
         <title>Inference</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2719168906</link>
         <description><![CDATA[<div>A conclusion reached through evidence and reasoning.</div>]]></description>
         <enclosure url="" />
         <pubDate>2023-09-25 11:35:39 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2719168906</guid>
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      <item>
         <title>Hardness</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2719916269</link>
         <description><![CDATA[<div>Measurement of how strong or resistant a material is. </div>]]></description>
         <enclosure url="" />
         <pubDate>2023-09-25 19:23:59 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2719916269</guid>
      </item>
      <item>
         <title>Chemical Reaction</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2729197015</link>
         <description><![CDATA[<div>When two or more substances combine in ways that make a new substance form that have different properties from the beginning materials.</div>]]></description>
         <enclosure url="" />
         <pubDate>2023-10-02 19:43:46 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2729197015</guid>
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      <item>
         <title>Precipitate</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2729198311</link>
         <description><![CDATA[<div>A solid&nbsp;substance separated from a solution by a chemical change.&nbsp;</div>]]></description>
         <enclosure url="" />
         <pubDate>2023-10-02 19:45:01 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2729198311</guid>
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      <item>
         <title>Reactants</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2731928856</link>
         <description><![CDATA[<div>The substances at the beginning of a chemical reaction. </div>]]></description>
         <enclosure url="" />
         <pubDate>2023-10-04 11:56:32 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2731928856</guid>
      </item>
      <item>
         <title>Products</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2731929248</link>
         <description><![CDATA[<div>The new substances that are created after a chemical reaction. </div>]]></description>
         <enclosure url="" />
         <pubDate>2023-10-04 11:56:52 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2731929248</guid>
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      <item>
         <title>Chemical Equation</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2731930092</link>
         <description><![CDATA[<div>Symbolic representations of chemical reactions.</div>]]></description>
         <enclosure url="" />
         <pubDate>2023-10-04 11:57:24 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2731930092</guid>
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      <item>
         <title>Mixture</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2740407862</link>
         <description><![CDATA[<div>Two or more substances that are not chemically combined.</div>]]></description>
         <enclosure url="" />
         <pubDate>2023-10-10 17:44:12 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2740407862</guid>
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      <item>
         <title>Phase Change</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2740408697</link>
         <description><![CDATA[<div>When a substance changes from one state of matter to another. </div>]]></description>
         <enclosure url="" />
         <pubDate>2023-10-10 17:44:47 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2740408697</guid>
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      <item>
         <title>Liquid</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2742208550</link>
         <description><![CDATA[<div>State of matter with indefinite shape and definite volume. Particles are close together, but flow past each other. </div>]]></description>
         <enclosure url="" />
         <pubDate>2023-10-11 17:20:50 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2742208550</guid>
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      <item>
         <title>Sublimation</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2742208833</link>
         <description><![CDATA[<div>Phase change from a solid to a gas. </div>]]></description>
         <enclosure url="" />
         <pubDate>2023-10-11 17:21:02 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2742208833</guid>
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      <item>
         <title>Condensation</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2742209133</link>
         <description><![CDATA[<div>Phase change from a gas to a liquid.</div>]]></description>
         <enclosure url="" />
         <pubDate>2023-10-11 17:21:13 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2742209133</guid>
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      <item>
         <title>Deposition </title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2742209352</link>
         <description><![CDATA[<div>Phase change from a gas to a solid. </div>]]></description>
         <enclosure url="" />
         <pubDate>2023-10-11 17:21:21 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2742209352</guid>
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      <item>
         <title>Vaporization </title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2742209550</link>
         <description><![CDATA[<div>Phase change from a liquid to a gas. (boiling &amp; evaporation)</div>]]></description>
         <enclosure url="" />
         <pubDate>2023-10-11 17:21:28 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2742209550</guid>
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      <item>
         <title>Freezing</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2742209700</link>
         <description><![CDATA[<div>Phase change from a liquid to a solid.</div>]]></description>
         <enclosure url="" />
         <pubDate>2023-10-11 17:21:34 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2742209700</guid>
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      <item>
         <title>Melting</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2742209885</link>
         <description><![CDATA[<div>Phase change from a solid to a liquid.</div>]]></description>
         <enclosure url="" />
         <pubDate>2023-10-11 17:21:41 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2742209885</guid>
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      <item>
         <title>Gas</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2742210332</link>
         <description><![CDATA[<div>State of matter with indefinite shape and volume. Particles are moving fast and far apart.</div>]]></description>
         <enclosure url="" />
         <pubDate>2023-10-11 17:21:59 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2742210332</guid>
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      <item>
         <title>Solid</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2742210568</link>
         <description><![CDATA[<div>State of matter with definite shape and volume. Particles are closely packed, yet still vibrate.</div>]]></description>
         <enclosure url="" />
         <pubDate>2023-10-11 17:22:08 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2742210568</guid>
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         <title>Law of Conservation of Matter</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2745354394</link>
         <description><![CDATA[<div>Matter can neither be created nor destroyed. The atoms rearrange to form new substances.</div>]]></description>
         <enclosure url="" />
         <pubDate>2023-10-13 14:58:15 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2745354394</guid>
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         <title>Closed System</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2745354707</link>
         <description><![CDATA[<div>A system where  no reactants or products can escape, only heat can be exchanged freely.</div>]]></description>
         <enclosure url="" />
         <pubDate>2023-10-13 14:58:32 UTC</pubDate>
         <guid>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2745354707</guid>
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         <title>Open System</title>
         <author>areyelts1</author>
         <link>https://padlet.com/areyelts1/sq4u7rjzmq4xian1/wish/2745354796</link>
         <description><![CDATA[<div>A system where both energy and matter can be exchanged with the surroundings.</div>]]></description>
         <enclosure url="" />
         <pubDate>2023-10-13 14:58:36 UTC</pubDate>
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