Substances can exist in three states of matter - solid, liquid and gas. All substances are made from particles, and the forces between the particles are different in solids, liquids and gases. The ...

Effectively dispersing powders into liquids can be a challenge. Utilizing vacuum in the correct ways can help with wetting and dispersion When introducing powdered materials into liquids, the goal is ...

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 ...

An illustration of the excitation of a spin liquid on a honeycomb lattice with neutrons. Genevieve Martin, Oak Ridge National Laboratory For years, students have learned that there are four observable ...

Students are introduced to the idea that matter is composed of atoms and molecules that are attracted to each other and in constant motion. Students explore the attractions and motion of atoms and ...

The units of density depend on the units used for mass and volume. The most commonly used units are grams per cubic centimetre (g/cm³) or kilograms per cubic metre (kg/m³). These balloons are the same ...