Matter+Labs

Expansion and Contraction Lab
 **Problem: What will happen to the balloon if i place the bottle in cold and (warm) water?**  **Research:** **Expand means to spread out while contract means to clump together.** (Use scientific explanations)  **Hypothesis:** **If we place the bottle in warm water then particles in the balloon will cause it to expand.**  ** **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:** **When we put the balloon and the bottle in the warm water it expanded just like we said in our prediction. Then, when we put the balloon and the bottle in the cold water it contracted just like we said in our prediction.** <span style="font-family: Tahoma,Geneva,sans-serif; font-size: 12pt; mso-bidi-font-size: 12.0pt; msobidifontsize: 12.0ptmsoBidiFontSize;">
 * If we place the bottle in cold water then the particles will cause it to contract.

the same. || Limpy, helpless, and the balloon still looks the same. || with air. || it was in room temp. Describe what you see! || <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 correct. I stated that when I put my balloon in the warm water it would become puffy and fill up with air. Also known as expanding. When I put it in cold water the balloon looked helpless and limpy. Otherwise known as contracting. My hypothesis matched my results correctley.**
 * Water Temperature || Prediction || Description of the Balloon ||
 * Room Temperature || It will stay
 * Warm || It will expand. || It is puffy and starting to fill up
 * Cold || It will contract. || It will(you are not predicting here) look the same from when

80% ||
 * 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 || 16/20