Matter+Labs

Expansion and Contraction Lab
 **Problem:What will the ballon do in hot or cold water?**  **Research:** Expand means to be far apart and Contrast means to be close together.  **Hypothesis: If we put the ballon in hot or cold water then something different will happpen. (expand, contrast) (What? This is your prediction, so you have to state what you think is going to happen.) **  **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;">

You did a nice job describing what the balloon looked like when the bottle was placed in cold water, but in the room and hot you described what it was doing.
 * Water Temperature || Prediction || Description of the Balloon ||
 * Room Temperature || not blown up || the ballon was saggy ||
 * Warm || blow up || the ballon was blown up ||
 * Cold || make the ballon saggy || the balloon was saggy ||

<span style="font-family: Tahoma,Geneva,sans-serif; font-size: 12pt; msobidifontsize: 12.0ptmsoBidiFontSize;">**Conclusion:My htpothesis was correct. In my hypothesis i stated that some thing different will happen when we put the bottle in hot and cold water. My results showed that when i placed the bottle in warm water the ballon expanded and the ballon blew up and when i placed the bottle in cold water the ballon contrasted and drooped.**

75% ||
 * 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 || 15/20