Scale of the Universe – Putting the universe into perspective. Link overview chemistrymodels. Middle School Physical Science. Build an Atom - Atomic Structure, Atoms, Atomic Nuclei. Topics Atoms Atomic Structure Isotope Symbols Atomic Nuclei Description. Chapter 4: The Periodic Table & Bonding. Show a picture of a pencil point and how the carbon atoms look at the molecular level.
Project the image Pencil Zoom. Students should be familiar with the parts of the atom from Chapter 3 but reviewing the main points is probably a good idea. Ask students questions such as the following: What are the three different tiny particles that make up an atom?