Almost everything is made of particles. Particles can be atoms, molecules or ions. Particles behave differently in solids, liquids and gases. The particle model explains the differences between solids ...

You know water evaporates - that's when it turns from a liquid to a gas. You probably also know that a hot pot of water will cool off in part because of evaporation. However, did you know that a cup ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

Scientists have developed 'porous liquids': Nanoparticles, that are able to separate gas molecules of different sizes from each other, float - finely distributed - in a solvent. The porous liquids may ...

Filtering and treating water accounts for about 13 percent of all electricity consumed in the US every year and releases about 290 million metric tons of CO2 into the atmosphere annually. New research ...

AMES, Iowa – Martin Thuo likes to look for new, affordable and clean ways to put science and technology to work in the world. His lab is dedicated to an idea called frugal innovation: “How do you do ...

Solids, liquids and gases. In a solid like this brick, the particles are regularly arranged touching their neighbours and move only by vibrating. This explains why solids have a fixed shape. In a ...