Ideas+for+evidence

(link to home) Refined Topic:

Ideas of questions to use to answer questions:

Is it possible to make ice without sticking water in the freezer? Why does sweating cool us down? (//TL: written student evidence collected 2/12/10// //(AH: has notes from verbal responses from students, February 2010)//

Why can you smell a bar of smelly soap? Or why can you smell dog poop? (//TL: video interviews from November 2009)// // (AH: has notes from verbal responses from students, February 2010) //
 * Describe what is in the bubbles that form when water is boiling? //(TL: most common responses February 2010: H2, O2, CO2, N2, H2O. Some students thought H2 and O2 were coming together to make H2O//) //(AH: has tallied responses from 105 students and brief analysis of results, January 2010)//


 * At what temperature does water boil? How the temperature of water change while it is boiling? // (AH: has notes from verbal responses from students, February 2010) //


 * Describe the motion of molecules of solid, liquid, and gaseous water?


 * Why does ice float?


 * Describe what happens to the boiling point of water when you go to the top of a tall mountain where air pressure is lower.


 * What will happen to a glass of ice water if it is put in a freezer at exactly 0C.


 * If I leave a glass of water on a counter for several days, the volume will decrease. Why?


 * Name a chemical that exists in frozen state under normal conditions.