Particles can move freely in all directions / can change volume and shape.

Scientists observe and measure these to identify unknown substances.

A mixture in which the particles of a material are evenly mixed with the particles of another material.

All matter is made of these smaller pieces of matter, which are always moving.

The way particles in a piece of matter move is called...

The amount of matter in an object or a substance.

A substance whose molecules contain atoms of different elements.

Negatively charged particles found in the nucleus of an atom.

This is made up of two or more atoms joined tightly together.

Positively charged particles in the nucleus of an atom.

The smallest particle of a substance.

The amount of mass in a known volume of an object.

The stuff that everything is made of - can be solid, liquid or gas.

A combination of two or more substances that do not form a new substance.

The ability of a substance to change into a new substance with different properties.

A pure substance made of only one kind of atom.

They do not have a charge and are found in the nucleus of an atom.

To form a solution with another substance.

A property that can be observed, measured, or changed without changing the substance itself.

The center of an atom.

The particles in a _____________ are locked in place and can only vibrate in place.

The particles in a _____________ are close together, but they can move and slide about.

The particles in a _____________ have a fixed volume and can change shape.

The particles in a _____________ have a fixed volume and shape.

The particles in a _____________ can move freely in all directions.

The particles in a _____________ can change volume and shape.

Which is NOT a state of matter?

Matter that is made up of one type of particle with unique properties.

To completely mix with a different material.

Liquids can change shape.

Solids can change shape.

A mixture is a combination of two or more substances, where the particles of the substances are not joined together and can be separated again.

A substance is matter that is made up of different types of particles.

Solids can change volume.

Anything that has weight or takes up space is a gas.

A substance whose molecules contain atoms of different elements is a compound.

Some properties are hard to see.

Solubility is a property that lets us see how well a substance can dissolve in another substance.

Reflectivity is a property that lets us see how well a substance can dissolve in another substance.

A property that lets us see how well a substance can dissolve in another substance.

A property of a substance where we are looking at how well the substance allows electricity to flow through it.

A property of a substance where we are looking at how well the substance allows heat to flow through it.

A property that describes how much light bounces off a substance.

All properties are easy to see.