Properties ,Structure of Matter/Density

Anything that has mass and takes up space.

• Atom
• Matter
• Element
• Neutron

Smallest particle of an element that still has the properties of that element. 

• Atom
• Compound
• Molecule
• Element 

Particle in an atom that has a negative charge. 

• Proton 
• Neutron 
• Electron 
• Nucleus 

Substance that cannot be broken down into other substances. 

• Matter 
• Molecule
• Element
• Compound

Center core of an atom. 

• Proton
• Nucleus
• Electron 
• Neutron 

Substance made of two or more different elements that chemically combine. 

• Atom
• Element
• Compound
• Proton

Change in the size, shape, or state of matter with no new matter being formed. 

• Physical Change
• Chemical Change
• Matter 
• Molecule 

Change in matter that results in new substance being formed. 

• Physical Change
• Chemical Change
• Protons
• Electrons

A change in the physical properties of a substance,  which is usually reversible 

• Chemical Change
• Physical Change
• Mass
• Conservation of Matter

A chemical reaction involving the rearrangement of the atoms of one or more substances

• Physical Change
• Chemical Change 
• Physical Science
• Conservation of Matter