___ are substances that CANNOT be broken down or separated into simpler substances.

An ___ is the smallest piece of an element that can exist.

There are ___ (#) different types of elements.

A ___ is 2+ elements chemically combined together.

A ___ is a group of atoms chemically bonded together.

A ___ is the smallest piece of a compound that can exist.

Water, salt, carbon dioxide, and sugar are examples of ___.

Iron, carbon, hydrogen and oxygen are examples of ___.

There are ___ (#) different types of compounds.

A chemical ___ is the force that hold the atoms in molecules together.

___ describes how something looks, feels, smells, tastes, or behaves.

___ describes the stuff that something is made from.

A ___ is a short, abbreviation for a compound - uses chemical symbols subscript numbers

Compounds have ___ the elements they are made from.

A ___ substance is made of only one type of particle.

___ is the chemical formula for water.

___ is the chemical formula for carbon dioxide.

Compounds often form during ___.

Compounds are ___.

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