Substances can exist in three states of matter - solid, liquid and gas. Substances can change states. To change the state of a substance energy must be transferred to, or from, the substance.

Solid, liquid, or gas? Technique quickly identifies physical state of tissues and tumors The method could be a route to quicker, less invasive cancer diagnoses.

It’s not always so easy to say definitely that a substance is a solid, liquid, or gas. Shaving cream seems to have an unusual state because it is a liquid soap with a lot of gas bubbles mixed in it.

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

Researchers at the École Polytechnique Fédérale de Lausanne (EPFL) and Kyoto University have formulated a hydrogen-rich ...

You know what a state of matter is. There's solids, there's liquids, there's gases ... It shows us that things are much more complicated than solid, liquid, gas. For one thing, ...

When energy is transferred to dry ice, the solid carbon dioxide does not melt to liquid carbon dioxide. Instead, the solid changes directly to a gas. This process is called sublimation. Sublimation ...

Promising 80 percent greater range, a 240,000-mile life, and 15-minute recharging time at a reasonable cost, this could be the battery that outshines gas.