Demonstration: This is a classic demonstration that gives strong circumstantial evidence for the particulate nature of vapours...
Demonstration: A classic demonstration that is explained satisfactorily by a particulate model of gases. The students first...
When teaching this topic, it is important to avoid your students conflating the energy analysis with an explanation of what’s...
Here, students can learn more about how the microscopic behaviour of particles gives rise to macroscopic behaviour; they can...
This episode looks at Brownian motion as evidence for the particulate nature of matter, and the macroscopic gas laws.
This episode relates the gas laws to the behaviour of the particles of a gas.
Imagine molecules in a gas; dots spaced far apart. Add arrows to show the random motion, not all speeds (arrows) the same but...
Class practical: Here phosphor bronze balls model a small volume of a gas.
Students will probably have met the simple molecular picture of solids, liquids and gases. Matter is, in every case, made up...
Class practical: Students use marbles in a tray to explore models.
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