Atoms & Mixtures Crossword Puzzle

QUESTIONS LIST:

• bond : when atoms combine they form a chemical _ .
• magnet : iron can be separated from a mixture using a _ .
• broken : an element is any substance that cannot be _ down into another substance.
• different : compounds have properties that are _ from the properties of the elements that made them.
• mixture : a _ is formed when substances combine without bonding.
• evenly : soy sauce is a homogeneous mixture because the substances in it are _ mixed.
• one : carbon monoxide has carbon and oxygen combining at a ratio of one to _ .
• elements : greek philosophers speculated that all matter was made from the four _ earth, air, fire, and water.
• liquids : solids can be separated from _ using filtration.
• molecule : a _ is when two or more atoms are held together by bonds.
• two : an oxygen molecule is made of _ (a #) oxygen atoms.
• cloud : atoms have a positive nucleus surrounded by a _ of electrons.
• formula : a chemical _ represents the number of each element in a compound.
• ratio : compounds combine at a fixed _ .
• separate : mixtures are made of substances that do not bond together. therefore, you can _ the parts.
• particle : the _ theory states that all matter is made of atoms.