Matter+Labs

Expansion and Contraction Lab
 **Problem:If you put the balloon in warm water the bottle will change** (1.) Not in the form of a question (2.) Missing cold water  **Research:Warm is heat,cold is freezing, room tempuature is different** (This information does not support making a good hypothesis for the problem)  **Hypothesis:If you put the bottle in different water then the balloon will expand** (Different water? You mean tap vs. spring 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;">

You need to use adjectives to describe what the balloon looks like. <span style="font-family: Tahoma,Geneva,sans-serif; font-size: 12pt; msobidifontsize: 12.0ptmsoBidiFontSize;">**Conclusion:My hypothisis was correct. We said if we put it in the warm water it will expand and the cold water would contract.The results were that the balloon in the warm water expanded and the cold contracted.That proves my hypothisis was correct.**
 * Water Temperature || Prediction || Description of the Balloon ||
 * Room Temperature || same || same ||
 * Warm || expand || expanded ||
 * Cold || contract || contract ||

45% ||
 * 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 || 9/20