matter+labs

Expansion and Contraction Lab
 **Problem: what will hapen to the balloon at room temp. in cold water and in hot ? **  **Research:** **expand (to spred apart)/ contract ( to get closer)**  **Hypothesis:if we put the balloon in warm water then it will start to blow up** (What will it do in cold?)  **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;"> Use adjectives to describe what the balloon looks like. <span style="color: #ff0000; font-family: Tahoma,Geneva,sans-serif; font-size: 12pt; msobidifontsize: 12.0ptmsoBidiFontSize;">**Conclusion : My hypothisis was wrong. I stated that when you put the balloon in warm water it would blow up. and when you put it in cold water it would sink down. you can see that the results and my hypothisis were different causing my hypothisis to be wrong.** (Doesn't expand cause matter to "blow up"? Doesn't contract cause matter to shrink/sink?!? 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 || contract ||

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

When i do another lab i need to finish all of the steps on the paper and fill in the questions. and i also need to coaperate in the lab. and i need to collect quantitive and qualitative data.