Why is H bonding so important to water's properties? Why is the shape of a molecule important? Describe what occurs to the particles of a substance when the 1-tetradecanol melts. Explain why this occurs. Why do liquids expand when heated? Why does density vary in the states of matter?
We use this idea in gadgets such as thermometers, which measure temperatures precisely using metals that expand when they're heated and contract when they're cooled. Some materials signal temperature changes even more dramatically by changing color as they get hotter or colder: we say they're ...
These students attributed a gas‐like model of atomic/molecular movement to situations involving a heated solid. Of the students who held two conflicting models of atomic/molecular movement in solids, almost all provided justification for doing so, indicating their holding of the conflicting models ...
Bouwma-Gearhart J, Stewart J and Brown K 2009 Student misapplication of a gas-like model to explain particle movement in heated solids: implications for curriculum and instruction towards students' creation and revision of accurate explanatory models International Journal of Science Education 31 9 ...
Why does Diet Coke and Mentos make a chemical reaction? Why were boiling chips used in a Charles's law experiment? Why do liquids expand when heated? Why do gases diffuse? Why does a balloon crumble and shrink when liquid nitrogen is poured into it? How does fluid imbalance affect gas ex...
When epoxy resins harden, they are stronger in tension and compression than concrete. Compounds made of epoxy resin don’t have any volatile solvents. After curing, all of the liquid resin turns into solids. Epoxy resin can stick to just about any building material. ...
Closely related to SMPs are shape-changing polymers (SCPs), which change shape more gradually when they're heated (or energetically stimulated in some other way) and return to shape when cooled. Although self-healing materials (ones that repair themselves after damage) can work in various ...
(2009). Student Misapplication of a Gas‐like Model to Explain Particle Movement in Heated Solids: Implications for curriculum and instruction towards students' creation and revision of accurate explanatoryBouwma-Gearhart, J., Stewart, J., & Brown, K. (2009). Student Misapplication of a Gas-...