. It is known not to be composed of known particles like protons, neutrons or electrons, nor of the particles of dark matter, because these all gravitate

. It is known not to be composed of known particles like protons, neutrons or electrons, nor of the particles of dark matter, because these all gravitate

In cosmology dark energy is the name given to the anti gravitating influence that is accelerating the rate of expansion the universe

In cosmology  dark energy is the name given to the anti gravitating influence that is accelerating the rate of expansion  the universe

The modern conception of matter has been refined many times in history, in light of the improvement in knowledge of just what the basic building blocks are, and in how they interact.

The modern conception of matter has been refined many times in history, in light of the improvement in knowledge of just what the basic building blocks are, and in how they interact.

Its molecules would not be water anymore. Changing states of matter is about changing densities, pressures, temperatures, and other physical properties. The basic chemical structure does not change

Its molecules would not be water anymore. Changing states of matter is about changing densities, pressures, temperatures, and other physical properties. The basic chemical structure does not change

If the formula of water were to change, that would be a chemical change. If you added another oxygen atom, you would make hydrogen peroxide (H2O2).

If the formula of water were to change, that would be a chemical change. If you added another oxygen atom, you would make hydrogen peroxide (H2O2).

So you ask, "What is a chemical state?"

So you ask, "What is a chemical state?"

It has the same molecular structure whether it is a gas, liquid, or solid. Although its physical state may change, its chemical state remains the same.

It has the same molecular structure whether it is a gas, liquid, or solid. Although its physical state may change, its chemical state remains the same. It has the same molecular structure whether it is a gas, liquid, or solid. Although its physical state may change, its chemical state remains the same.

Water is another example. The compound water is made up of two hydrogen (H) atoms and one oxygen (O) atom.

Water is another example. The compound water is made up of two hydrogen (H) atoms and one oxygen (O) atom.

Oxygen (O2) as a gas still has the same properties as liquid oxygen. The liquid state is colder and denser but the molecules are still the same.

Oxygen (O2) as a gas still has the same properties as liquid oxygen. The liquid state is colder and denser but the molecules are still the same.

Elements and compounds can move from one physical . state to another and not change

Elements and compounds can move from one physical . state to another and not change

The scientists who worked with the Bose-Einstein condensate received a Nobel Prize for their work in 1995. But what makes a state of matter? It's about the physical state of molecules and atoms.

The scientists who worked with the Bose-Einstein condensate received a Nobel Prize for their work in 1995. But what makes a state of matter? It's about the physical state of molecules and atoms.

You should know about solids, liquids, gases, plasmas, and a new one called Bose-Einstein condensates. The first four have been around a long time.

You should know about solids, liquids, gases, plasmas, and a new one called Bose-Einstein condensates. The first four have been around a long time.

As of 1995, scientists have identified five states of matter. They may discover one more by the time you get old. 

Matter is also related to light and electromagnetic radiation. Even though matter can be found all over the universe, you usually find it in just a few forms.

Matter is everything around you. Matter is anything made of atoms and molecules. Matter is anything that has a mass.