matter+lab

Expansion and Contraction Lab
 **Problem: what will happen (to the balloon) if i put the water bottle in hot water and then cold water?**  **Research: heat makes things expand so i think the water will expand. (Explain expand and contract.)**  **Hypothesis: if i put the water bottle in hot water, (then) it will blow up, and if i put i put it in cold water (then) it will deflate.**  **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;"> <span style="font-family: Tahoma,Geneva,sans-serif; font-size: 12pt; msobidifontsize: 12.0ptmsoBidiFontSize;">**Conclusion:** my hypothesis was correct. i stated that when i out the bottle in hot water, it would blow up and when i put it in cold water it would deflate. (Use the words in your results to support your conclusion.)
 * Water Temperature || Prediction || Description of the Balloon ||
 * Room Temperature || deflate || flabby, wrikley ||
 * Warm || blow up || fat, puffy and smooth ||
 * Cold || deflate || flabby and wrinkley ||

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