States of Matter, Mixtures, and Pure Substances

matter

• Anything that is real.

• Anything that has mass and takes up space.

• Anything that can be touched.

• Anything that has energy.

atom

• Something that cannot be broken down into smaller units.

• Something that can react.

• Tiny objects that are the smallest unit of matter that is recognizable as an element.

• Small objects that explode easily.

homogenous mixture

• Two or more substances combined evenly in variable amounts.

• Two or more substances combined unevenly in variable amounts.

• A group of substances that are the same.

• A group of substances that are different.

heterogenous mixture

• Two or more substances combined evenly in variable amounts.

• Two or more substances combined unevenly in variable amounts.

• A group of substances that are the same.

• A group of substances that are different.

pure substance

• Matter that is unevenly mixed together.

• Matter that is able to be physically separated into different substances.

• Matter that is evenly mixed together.

• Matter that is made up of only one kind of atom or compound.

particles

• Tiny pieces of matter like atoms or molecules.

• Energy rays released by nuclear reactions.

• Pieces of matter that cannot be further broken down.

• Tiny objects that make up atoms.

solid

• A phase of matter in which particles vibrate in place while very close together.
• A phase of matter in which particles flow past one another while staying close together.
• A phase of matter in which particles break free and fly around their container.
• A phase of matter made up of charged particles.

liquid

• A phase of matter in which particles vibrate in place while very close together.

• A phase of matter in which particles flow past one another while staying close together.

• A phase of matter in which particles break free and fly around their container.

• A phase of matter made up of charged particles.

gas

• A phase of matter in which particles vibrate in place while very close together.

• A phase of matter in which particles flow past one another while staying close together.

• A phase of matter in which particles break free and fly around their container.

• A phase of matter made up of charged particles.

melting

• A phase change that transforms a solid to a liquid.

• A phase change that transforms a liquid to a solid.

• A phase change that transforms a liquid to a gas.

• A phase change that transforms a gas to a liquid.