Matter+Lab

Expansion and Contraction Lab
 **Problem:What will happen if we put warm and cold water in a bottle and then put a balloon on top?**  **Research:Expand is the increased motion that makes the particles collide with one another.Contract is subtracting heat from matter which causes the particles to move faster. (This is a hyothesis. You need to define expand and contract.) **

 **Materials: Safety goggles, Balloon,** **Plastic bottle, Warm water,** **Cold water**  **Procedure:**  1.) Stretch the opening of the balloon over the neck of the bottle. 2.)  Observe the balloon at room temperature. Record observations. 3.) Place the bottle with the ballon in the warm water for about 30 seconds. 4.) Observe the ballon again and record any changes you see in the balloon. 5.) Remove the bottle and ballon from the warm water and quickly place it in the cold water for about 30 seconds (or until it cools). 6.) Observe the ballon and record any changes you see in the ballon.  <span style="font-family: Tahoma,Geneva,sans-serif; font-size: 12pt; msobidifontsize: 12.0ptmsoBidiFontSize;">**Results:** These observations are not what should have happened. Did you place the descriptions in the wrong boxes? <span style="font-family: Tahoma,Geneva,sans-serif; font-size: 12pt; mso-bidi-font-size: 12.0pt; msobidifontsize: 12.0ptmsoBidiFontSize;">
 * Hypothesis:If I put the balloon on the bottle with warm and cold water the warm water will make it inflate if you put cold water in the bottle it will deflate**
 * Water Temperature ||  || Prediction ||   || Description of the Balloon ||

will happen ||  || nothing ||
 * Room Temperature ||  || nothing


 * Warm ||  || nothing will happen ||   || nothing ||


 * Cold ||  || will inflate ||   || inflated, standing up ||

<span style="font-family: Tahoma,Geneva,sans-serif; font-size: 12pt; mso-bidi-font-size: 12.0pt; msobidifontsize: 12.0ptmsoBidiFontSize;"> <span style="font-family: Tahoma,Geneva,sans-serif; font-size: 12pt; msobidifontsize: 12.0ptmsoBidiFontSize;">**Conclusion:My hypothesis was wrong It will inflate not deflate** (Restate the hypothesis. Use descriptions in the chart for support.) 60% ||
 * I can state a hypothesis related to the problem and procedure. || I can conduct research about concepts that are related to the topic I am investigating. || I can collect quantitative/qualitative data while conducting an experiment. || I can use the data in my results to draw a conclusion about what happened and why. || Overall, I can apply the scienctific method to solve a problem. || Total ||
 * 1 2 3 **4** || **1** 2 3 4 || 1 2 3 **4** || **1** 2 3 4 || 1 **2** 3 4 || 12/20