Matter+Labs

Expansion and Contraction Lab
 **Problem:What will happen to the balloon at room temp.,in the cold water, and the hot water ? **  **ResearchExpand to take up more space/ Contract to take up less space**  **Hypothesis:if we put the balloon in the hot water then it will expand then it will blow up (What will happen when placed in the cold water?) **  **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. <span style="font-family: Tahoma; font-size: 14pt; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: Tahoma; msobidifontsize: 12.0pt; msofareastfontfamily: Tahoma; msolist: Ignore;">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; mso-bidi-font-size: 12.0pt; msobidifontsize: 12.0ptmsoBidiFontSize;"> <span style="font-family: Tahoma,Geneva,sans-serif; font-size: 12pt; msobidifontsize: 12.0ptmsoBidiFontSize;">**Results:** <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; mso-bidi-font-size: 12.0pt; msobidifontsize: 12.0ptmsoBidiFontSize;"> Do not describe what it is doing, describe what it looks like. <span style="font-family: Tahoma,Geneva,sans-serif; font-size: 12pt; msobidifontsize: 12.0ptmsoBidiFontSize;">**Conclusion:** //__My hypothesis was wrong. I stated that when you put the balloon in warm water it would blow up, and when you put the balloon in the cold water it would sink down. You can see that the results and my hypothisis were different causing my hypothisis to be wrong.__// Isn't expanding of air particles making the balloon "blow up"????? Isn't the contraction of air particles causing it to sink down? I don't see how you concluded your hypothesis was wrong.
 * Water Temperature || Prediction || Description of the Balloon ||
 * Room Temperature || stay the same || Just sat there ||
 * Warm || blow up || expanded ||
 * Cold || sink || contracted ||

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